Remove Gonk build directories

1 files changed, 0 insertions, 1081 deletions

diff --git a/widget/gonk/nsScreenManagerGonk.cpp b/widget/gonk/nsScreenManagerGonk.cpp
deleted file mode 100644
index e359fd195..000000000
--- a/widget/gonk/nsScreenManagerGonk.cpp
+++ /dev/null
@@ -1,1081 +0,0 @@
-/* Copyright 2012 Mozilla Foundation and Mozilla contributors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "android/log.h"
-#include "GLContext.h"
-#include "gfxPrefs.h"
-#include "gfxUtils.h"
-#include "mozilla/MouseEvents.h"
-#include "mozilla/TouchEvents.h"
-#include "mozilla/Hal.h"
-#include "libdisplay/BootAnimation.h"
-#include "libdisplay/GonkDisplay.h"
-#include "nsScreenManagerGonk.h"
-#include "nsThreadUtils.h"
-#include "HwcComposer2D.h"
-#include "VsyncSource.h"
-#include "nsWindow.h"
-#include "mozilla/ClearOnShutdown.h"
-#include "mozilla/layers/CompositorBridgeParent.h"
-#include "mozilla/layers/CompositorThread.h"
-#include "mozilla/Services.h"
-#include "mozilla/ProcessPriorityManager.h"
-#include "nsIdleService.h"
-#include "nsIObserverService.h"
-#include "nsAppShell.h"
-#include "nsProxyRelease.h"
-#include "nsTArray.h"
-#include "pixelflinger/format.h"
-#include "nsIDisplayInfo.h"
-#include "base/task.h"
-
-#if ANDROID_VERSION >= 17
-#include "libdisplay/DisplaySurface.h"
-#endif
-
-#define LOG(args...)  __android_log_print(ANDROID_LOG_INFO, "nsScreenGonk" , ## args)
-#define LOGW(args...) __android_log_print(ANDROID_LOG_WARN, "nsScreenGonk", ## args)
-#define LOGE(args...) __android_log_print(ANDROID_LOG_ERROR, "nsScreenGonk", ## args)
-
-using namespace mozilla;
-using namespace mozilla::hal;
-using namespace mozilla::gfx;
-using namespace mozilla::gl;
-using namespace mozilla::layers;
-using namespace mozilla::dom;
-
-namespace {
-
-class ScreenOnOffEvent : public mozilla::Runnable {
-public:
-    ScreenOnOffEvent(bool on)
-        : mIsOn(on)
-    {}
-
-    NS_IMETHOD Run() override {
-        // Notify observers that the screen state has just changed.
-        nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
-        if (observerService) {
-          observerService->NotifyObservers(
-            nullptr, "screen-state-changed",
-            mIsOn ? u"on" : u"off"
-          );
-        }
-
-        RefPtr<nsScreenGonk> screen = nsScreenManagerGonk::GetPrimaryScreen();
-        const nsTArray<nsWindow*>& windows = screen->GetTopWindows();
-
-        for (uint32_t i = 0; i < windows.Length(); i++) {
-            nsWindow *win = windows[i];
-
-            if (nsIWidgetListener* listener = win->GetWidgetListener()) {
-                listener->SizeModeChanged(mIsOn ? nsSizeMode_Fullscreen : nsSizeMode_Minimized);
-            }
-        }
-
-        return NS_OK;
-    }
-
-private:
-    bool mIsOn;
-};
-
-static void
-displayEnabledCallback(bool enabled)
-{
-    RefPtr<nsScreenManagerGonk> screenManager = nsScreenManagerGonk::GetInstance();
-    screenManager->DisplayEnabled(enabled);
-}
-
-} // namespace
-
-static uint32_t
-SurfaceFormatToColorDepth(int32_t aSurfaceFormat)
-{
-    switch (aSurfaceFormat) {
-    case GGL_PIXEL_FORMAT_RGB_565:
-        return 16;
-    case GGL_PIXEL_FORMAT_RGBA_8888:
-        return 32;
-    }
-    return 24; // GGL_PIXEL_FORMAT_RGBX_8888
-}
-
-// nsScreenGonk.cpp
-
-nsScreenGonk::nsScreenGonk(uint32_t aId,
-                           GonkDisplay::DisplayType aDisplayType,
-                           const GonkDisplay::NativeData& aNativeData,
-                           NotifyDisplayChangedEvent aEventVisibility)
-    : mId(aId)
-    , mEventVisibility(aEventVisibility)
-    , mNativeWindow(aNativeData.mNativeWindow)
-    , mDpi(aNativeData.mXdpi)
-    , mScreenRotation(nsIScreen::ROTATION_0_DEG)
-    , mPhysicalScreenRotation(nsIScreen::ROTATION_0_DEG)
-#if ANDROID_VERSION >= 17
-    , mDisplaySurface(aNativeData.mDisplaySurface)
-#endif
-    , mIsMirroring(false)
-    , mDisplayType(aDisplayType)
-    , mEGLDisplay(EGL_NO_DISPLAY)
-    , mEGLSurface(EGL_NO_SURFACE)
-    , mGLContext(nullptr)
-    , mFramebuffer(nullptr)
-    , mMappedBuffer(nullptr)
-{
-    if (mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_WIDTH, &mVirtualBounds.width) ||
-        mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_HEIGHT, &mVirtualBounds.height) ||
-        mNativeWindow->query(mNativeWindow.get(), NATIVE_WINDOW_FORMAT, &mSurfaceFormat)) {
-        NS_RUNTIMEABORT("Failed to get native window size, aborting...");
-    }
-
-    mNaturalBounds = mVirtualBounds;
-
-    if (IsPrimaryScreen()) {
-        char propValue[PROPERTY_VALUE_MAX];
-        property_get("ro.sf.hwrotation", propValue, "0");
-        mPhysicalScreenRotation = atoi(propValue) / 90;
-    }
-
-    mColorDepth = SurfaceFormatToColorDepth(mSurfaceFormat);
-}
-
-static void
-ReleaseGLContextSync(mozilla::gl::GLContext* aGLContext)
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    aGLContext->Release();
-}
-
-nsScreenGonk::~nsScreenGonk()
-{
-    // Release GLContext on compositor thread
-    if (mGLContext) {
-        CompositorThreadHolder::Loop()->PostTask(
-            NewRunnableFunction(&ReleaseGLContextSync,
-                                mGLContext.forget().take()));
-        mGLContext = nullptr;
-    }
-}
-
-bool
-nsScreenGonk::IsPrimaryScreen()
-{
-    return mDisplayType == GonkDisplay::DISPLAY_PRIMARY;
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetId(uint32_t *outId)
-{
-    *outId = mId;
-    return NS_OK;
-}
-
-uint32_t
-nsScreenGonk::GetId()
-{
-    return mId;
-}
-
-NotifyDisplayChangedEvent
-nsScreenGonk::GetEventVisibility()
-{
-    return mEventVisibility;
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetRect(int32_t *outLeft,  int32_t *outTop,
-                      int32_t *outWidth, int32_t *outHeight)
-{
-    *outLeft = mVirtualBounds.x;
-    *outTop = mVirtualBounds.y;
-
-    *outWidth = mVirtualBounds.width;
-    *outHeight = mVirtualBounds.height;
-
-    return NS_OK;
-}
-
-LayoutDeviceIntRect
-nsScreenGonk::GetRect()
-{
-    return mVirtualBounds;
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetAvailRect(int32_t *outLeft,  int32_t *outTop,
-                           int32_t *outWidth, int32_t *outHeight)
-{
-    return GetRect(outLeft, outTop, outWidth, outHeight);
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetPixelDepth(int32_t *aPixelDepth)
-{
-    // XXX: this should actually return 32 when we're using 24-bit
-    // color, because we use RGBX.
-    *aPixelDepth = mColorDepth;
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetColorDepth(int32_t *aColorDepth)
-{
-    *aColorDepth = mColorDepth;
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenGonk::GetRotation(uint32_t* aRotation)
-{
-    *aRotation = mScreenRotation;
-    return NS_OK;
-}
-
-float
-nsScreenGonk::GetDpi()
-{
-    return mDpi;
-}
-
-int32_t
-nsScreenGonk::GetSurfaceFormat()
-{
-    return mSurfaceFormat;
-}
-
-ANativeWindow*
-nsScreenGonk::GetNativeWindow()
-{
-    return mNativeWindow.get();
-}
-
-NS_IMETHODIMP
-nsScreenGonk::SetRotation(uint32_t aRotation)
-{
-    if (!(aRotation <= ROTATION_270_DEG)) {
-        return NS_ERROR_ILLEGAL_VALUE;
-    }
-
-    if (mScreenRotation == aRotation) {
-        return NS_OK;
-    }
-
-    mScreenRotation = aRotation;
-    uint32_t rotation = EffectiveScreenRotation();
-    if (rotation == nsIScreen::ROTATION_90_DEG ||
-        rotation == nsIScreen::ROTATION_270_DEG) {
-        mVirtualBounds = LayoutDeviceIntRect(0, 0,
-                                             mNaturalBounds.height,
-                                             mNaturalBounds.width);
-    } else {
-        mVirtualBounds = mNaturalBounds;
-    }
-
-    nsAppShell::NotifyScreenRotation();
-
-    for (unsigned int i = 0; i < mTopWindows.Length(); i++) {
-        mTopWindows[i]->Resize(mVirtualBounds.width,
-                               mVirtualBounds.height,
-                               true);
-    }
-
-    return NS_OK;
-}
-
-LayoutDeviceIntRect
-nsScreenGonk::GetNaturalBounds()
-{
-    return mNaturalBounds;
-}
-
-uint32_t
-nsScreenGonk::EffectiveScreenRotation()
-{
-    return (mScreenRotation + mPhysicalScreenRotation) % (360 / 90);
-}
-
-// NB: This isn't gonk-specific, but gonk is the only widget backend
-// that does this calculation itself, currently.
-static ScreenOrientationInternal
-ComputeOrientation(uint32_t aRotation, const LayoutDeviceIntSize& aScreenSize)
-{
-    bool naturallyPortrait = (aScreenSize.height > aScreenSize.width);
-    switch (aRotation) {
-    case nsIScreen::ROTATION_0_DEG:
-        return (naturallyPortrait ? eScreenOrientation_PortraitPrimary :
-                eScreenOrientation_LandscapePrimary);
-    case nsIScreen::ROTATION_90_DEG:
-        // Arbitrarily choosing 90deg to be primary "unnatural"
-        // rotation.
-        return (naturallyPortrait ? eScreenOrientation_LandscapePrimary :
-                eScreenOrientation_PortraitPrimary);
-    case nsIScreen::ROTATION_180_DEG:
-        return (naturallyPortrait ? eScreenOrientation_PortraitSecondary :
-                eScreenOrientation_LandscapeSecondary);
-    case nsIScreen::ROTATION_270_DEG:
-        return (naturallyPortrait ? eScreenOrientation_LandscapeSecondary :
-                eScreenOrientation_PortraitSecondary);
-    default:
-        MOZ_CRASH("Gonk screen must always have a known rotation");
-    }
-}
-
-static uint16_t
-RotationToAngle(uint32_t aRotation)
-{
-    uint16_t angle = 90 * aRotation;
-    MOZ_ASSERT(angle == 0 || angle == 90 || angle == 180 || angle == 270);
-    return angle;
-}
-
-ScreenConfiguration
-nsScreenGonk::GetConfiguration()
-{
-    ScreenOrientationInternal orientation =
-        ComputeOrientation(mScreenRotation, mNaturalBounds.Size());
-
-    // NB: perpetuating colorDepth == pixelDepth illusion here, for
-    // consistency.
-    return ScreenConfiguration(mVirtualBounds.ToUnknownRect(), orientation,
-                               RotationToAngle(mScreenRotation),
-                               mColorDepth, mColorDepth);
-}
-
-void
-nsScreenGonk::RegisterWindow(nsWindow* aWindow)
-{
-    mTopWindows.AppendElement(aWindow);
-}
-
-void
-nsScreenGonk::UnregisterWindow(nsWindow* aWindow)
-{
-    mTopWindows.RemoveElement(aWindow);
-}
-
-void
-nsScreenGonk::BringToTop(nsWindow* aWindow)
-{
-    mTopWindows.RemoveElement(aWindow);
-    mTopWindows.InsertElementAt(0, aWindow);
-}
-
-static gralloc_module_t const*
-gralloc_module()
-{
-    hw_module_t const *module;
-    if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module)) {
-        return nullptr;
-    }
-    return reinterpret_cast<gralloc_module_t const*>(module);
-}
-
-static SurfaceFormat
-HalFormatToSurfaceFormat(int aHalFormat)
-{
-    switch (aHalFormat) {
-    case HAL_PIXEL_FORMAT_RGBA_8888:
-        // Needs RB swap
-        return SurfaceFormat::B8G8R8A8;
-    case HAL_PIXEL_FORMAT_RGBX_8888:
-        // Needs RB swap
-        return SurfaceFormat::B8G8R8X8;
-    case HAL_PIXEL_FORMAT_BGRA_8888:
-        return SurfaceFormat::B8G8R8A8;
-    case HAL_PIXEL_FORMAT_RGB_565:
-        return SurfaceFormat::R5G6B5_UINT16;
-    default:
-        MOZ_CRASH("Unhandled HAL pixel format");
-        return SurfaceFormat::UNKNOWN; // not reached
-    }
-}
-
-static bool
-NeedsRBSwap(int aHalFormat)
-{
-    switch (aHalFormat) {
-    case HAL_PIXEL_FORMAT_RGBA_8888:
-        return true;
-    case HAL_PIXEL_FORMAT_RGBX_8888:
-        return true;
-    case HAL_PIXEL_FORMAT_BGRA_8888:
-        return false;
-    case HAL_PIXEL_FORMAT_RGB_565:
-        return false;
-    default:
-        MOZ_CRASH("Unhandled HAL pixel format");
-        return false; // not reached
-    }
-}
-
-already_AddRefed<DrawTarget>
-nsScreenGonk::StartRemoteDrawing()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    MOZ_ASSERT(!mFramebuffer);
-    MOZ_ASSERT(!mMappedBuffer);
-
-    mFramebuffer = DequeueBuffer();
-    int width = mFramebuffer->width, height = mFramebuffer->height;
-    if (gralloc_module()->lock(gralloc_module(), mFramebuffer->handle,
-                               GRALLOC_USAGE_SW_READ_NEVER |
-                               GRALLOC_USAGE_SW_WRITE_OFTEN |
-                               GRALLOC_USAGE_HW_FB,
-                               0, 0, width, height,
-                               reinterpret_cast<void**>(&mMappedBuffer))) {
-        EndRemoteDrawing();
-        return nullptr;
-    }
-    SurfaceFormat format = HalFormatToSurfaceFormat(GetSurfaceFormat());
-    mFramebufferTarget = Factory::CreateDrawTargetForData(
-        BackendType::CAIRO,
-        mMappedBuffer,
-        IntSize(width, height),
-        mFramebuffer->stride * gfx::BytesPerPixel(format),
-        format);
-    if (!mFramebufferTarget) {
-        MOZ_CRASH("nsWindow::StartRemoteDrawing failed in CreateDrawTargetForData");
-    }
-    if (!mBackBuffer ||
-        mBackBuffer->GetSize() != mFramebufferTarget->GetSize() ||
-        mBackBuffer->GetFormat() != mFramebufferTarget->GetFormat()) {
-        mBackBuffer = mFramebufferTarget->CreateSimilarDrawTarget(
-            mFramebufferTarget->GetSize(), mFramebufferTarget->GetFormat());
-    }
-    RefPtr<DrawTarget> buffer(mBackBuffer);
-    return buffer.forget();
-}
-
-void
-nsScreenGonk::EndRemoteDrawing()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-
-    if (mFramebufferTarget && mFramebuffer) {
-        IntSize size = mFramebufferTarget->GetSize();
-        Rect rect(0, 0, size.width, size.height);
-        RefPtr<SourceSurface> source = mBackBuffer->Snapshot();
-        mFramebufferTarget->DrawSurface(source, rect, rect);
-
-        // Convert from BGR to RGB
-        // XXX this is a temporary solution. It consumes extra cpu cycles,
-        // it should not be used on product device.
-        if (NeedsRBSwap(GetSurfaceFormat())) {
-            LOGE("Very slow composition path, it should not be used on product!!!");
-            SurfaceFormat format = HalFormatToSurfaceFormat(GetSurfaceFormat());
-            gfxUtils::ConvertBGRAtoRGBA(
-                mMappedBuffer,
-                mFramebuffer->stride * mFramebuffer->height * gfx::BytesPerPixel(format));
-        }
-    }
-    if (mMappedBuffer) {
-        MOZ_ASSERT(mFramebuffer);
-        gralloc_module()->unlock(gralloc_module(), mFramebuffer->handle);
-        mMappedBuffer = nullptr;
-    }
-    if (mFramebuffer) {
-        QueueBuffer(mFramebuffer);
-    }
-    mFramebuffer = nullptr;
-    mFramebufferTarget = nullptr;
-}
-
-ANativeWindowBuffer*
-nsScreenGonk::DequeueBuffer()
-{
-    ANativeWindowBuffer* buf = nullptr;
-#if ANDROID_VERSION >= 17
-    int fenceFd = -1;
-    mNativeWindow->dequeueBuffer(mNativeWindow.get(), &buf, &fenceFd);
-    android::sp<android::Fence> fence(new android::Fence(fenceFd));
-#if ANDROID_VERSION == 17
-    fence->waitForever(1000, "nsScreenGonk_DequeueBuffer");
-    // 1000 is what Android uses. It is a warning timeout in ms.
-    // This timeout was removed in ANDROID_VERSION 18.
-#else
-    fence->waitForever("nsScreenGonk_DequeueBuffer");
-#endif
-#else
-    mNativeWindow->dequeueBuffer(mNativeWindow.get(), &buf);
-#endif
-    return buf;
-}
-
-bool
-nsScreenGonk::QueueBuffer(ANativeWindowBuffer* buf)
-{
-#if ANDROID_VERSION >= 17
-  int ret = mNativeWindow->queueBuffer(mNativeWindow.get(), buf, -1);
-  return ret == 0;
-#else
-  int ret = mNativeWindow->queueBuffer(mNativeWindow.get(), buf);
-  return ret == 0;
-#endif
-}
-
-nsresult
-nsScreenGonk::MakeSnapshot(ANativeWindowBuffer* aBuffer)
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    MOZ_ASSERT(aBuffer);
-
-    layers::CompositorBridgeParent* compositorParent = mCompositorBridgeParent;
-    if (!compositorParent) {
-        return NS_ERROR_FAILURE;
-    }
-
-    int width = aBuffer->width, height = aBuffer->height;
-    uint8_t* mappedBuffer = nullptr;
-    if (gralloc_module()->lock(gralloc_module(), aBuffer->handle,
-                               GRALLOC_USAGE_SW_READ_OFTEN |
-                               GRALLOC_USAGE_SW_WRITE_OFTEN,
-                               0, 0, width, height,
-                               reinterpret_cast<void**>(&mappedBuffer))) {
-        return NS_ERROR_FAILURE;
-    }
-
-    SurfaceFormat format = HalFormatToSurfaceFormat(GetSurfaceFormat());
-    RefPtr<DrawTarget> mTarget =
-        Factory::CreateDrawTargetForData(
-            BackendType::CAIRO,
-            mappedBuffer,
-            IntSize(width, height),
-            aBuffer->stride * gfx::BytesPerPixel(format),
-            format);
-    if (!mTarget) {
-        return NS_ERROR_FAILURE;
-    }
-
-    gfx::IntRect rect = GetRect().ToUnknownRect();
-    compositorParent->ForceComposeToTarget(mTarget, &rect);
-
-    // Convert from BGR to RGB
-    // XXX this is a temporary solution. It consumes extra cpu cycles,
-    if (NeedsRBSwap(GetSurfaceFormat())) {
-        LOGE("Slow path of making Snapshot!!!");
-        SurfaceFormat format = HalFormatToSurfaceFormat(GetSurfaceFormat());
-        gfxUtils::ConvertBGRAtoRGBA(
-            mappedBuffer,
-            aBuffer->stride * aBuffer->height * gfx::BytesPerPixel(format));
-        mappedBuffer = nullptr;
-    }
-    gralloc_module()->unlock(gralloc_module(), aBuffer->handle);
-    return NS_OK;
-}
-
-void
-nsScreenGonk::SetCompositorBridgeParent(layers::CompositorBridgeParent* aCompositorBridgeParent)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-    mCompositorBridgeParent = aCompositorBridgeParent;
-}
-
-#if ANDROID_VERSION >= 17
-android::DisplaySurface*
-nsScreenGonk::GetDisplaySurface()
-{
-    return mDisplaySurface.get();
-}
-
-int
-nsScreenGonk::GetPrevDispAcquireFd()
-{
-    if (!mDisplaySurface.get()) {
-        return -1;
-    }
-    return mDisplaySurface->GetPrevDispAcquireFd();
-}
-#endif
-
-GonkDisplay::DisplayType
-nsScreenGonk::GetDisplayType()
-{
-    return mDisplayType;
-}
-
-void
-nsScreenGonk::SetEGLInfo(hwc_display_t aDisplay,
-                         hwc_surface_t aSurface,
-                         gl::GLContext* aGLContext)
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    mEGLDisplay = aDisplay;
-    mEGLSurface = aSurface;
-    mGLContext = aGLContext;
-}
-
-hwc_display_t
-nsScreenGonk::GetEGLDisplay()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    return mEGLDisplay;
-}
-
-hwc_surface_t
-nsScreenGonk::GetEGLSurface()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    return mEGLSurface;
-}
-
-already_AddRefed<mozilla::gl::GLContext>
-nsScreenGonk::GetGLContext()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    RefPtr<mozilla::gl::GLContext>glContext = mGLContext;
-    return glContext.forget();
-}
-
-static void
-UpdateMirroringWidgetSync(nsMainThreadPtrHandle<nsScreenGonk>&& aScreen, nsWindow* aWindow)
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    already_AddRefed<nsWindow> window(aWindow);
-    aScreen->UpdateMirroringWidget(window);
-}
-
-bool
-nsScreenGonk::EnableMirroring()
-{
-    MOZ_ASSERT(NS_IsMainThread());
-    MOZ_ASSERT(!IsPrimaryScreen());
-
-    RefPtr<nsScreenGonk> primaryScreen = nsScreenManagerGonk::GetPrimaryScreen();
-    NS_ENSURE_TRUE(primaryScreen, false);
-
-    bool ret = primaryScreen->SetMirroringScreen(this);
-    NS_ENSURE_TRUE(ret, false);
-
-    // Create a widget for mirroring
-    nsWidgetInitData initData;
-    initData.mScreenId = mId;
-    RefPtr<nsWindow> window = new nsWindow();
-    nsresult rv = window->Create(nullptr, nullptr, mNaturalBounds, &initData);
-    NS_ENSURE_SUCCESS(rv, false);
-    MOZ_ASSERT(static_cast<nsWindow*>(window)->GetScreen() == this);
-
-    // Update mMirroringWidget on compositor thread
-    nsMainThreadPtrHandle<nsScreenGonk> primary =
-      nsMainThreadPtrHandle<nsScreenGonk>(new nsMainThreadPtrHolder<nsScreenGonk>(primaryScreen, false));
-    CompositorThreadHolder::Loop()->PostTask(
-        NewRunnableFunction(&UpdateMirroringWidgetSync,
-                            primary,
-                            window.forget().take()));
-
-    mIsMirroring = true;
-    return true;
-}
-
-bool
-nsScreenGonk::DisableMirroring()
-{
-    MOZ_ASSERT(NS_IsMainThread());
-    MOZ_ASSERT(!IsPrimaryScreen());
-
-    mIsMirroring = false;
-    RefPtr<nsScreenGonk> primaryScreen = nsScreenManagerGonk::GetPrimaryScreen();
-    NS_ENSURE_TRUE(primaryScreen, false);
-
-    bool ret = primaryScreen->ClearMirroringScreen(this);
-    NS_ENSURE_TRUE(ret, false);
-
-    // Update mMirroringWidget on compositor thread
-    nsMainThreadPtrHandle<nsScreenGonk> primary =
-      nsMainThreadPtrHandle<nsScreenGonk>(new nsMainThreadPtrHolder<nsScreenGonk>(primaryScreen, false));
-    CompositorThreadHolder::Loop()->PostTask(
-        NewRunnableFunction(&UpdateMirroringWidgetSync,
-                            primary,
-                            nullptr));
-    return true;
-}
-
-bool
-nsScreenGonk::SetMirroringScreen(nsScreenGonk* aScreen)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-    MOZ_ASSERT(IsPrimaryScreen());
-
-    if (mMirroringScreen) {
-        return false;
-    }
-    mMirroringScreen = aScreen;
-    return true;
-}
-
-bool
-nsScreenGonk::ClearMirroringScreen(nsScreenGonk* aScreen)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-    MOZ_ASSERT(IsPrimaryScreen());
-
-    if (mMirroringScreen != aScreen) {
-        return false;
-    }
-    mMirroringScreen = nullptr;
-    return true;
-}
-
-void
-nsScreenGonk::UpdateMirroringWidget(already_AddRefed<nsWindow>& aWindow)
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    MOZ_ASSERT(IsPrimaryScreen());
-
-    if (mMirroringWidget) {
-        nsCOMPtr<nsIWidget> widget = mMirroringWidget.forget();
-        NS_ReleaseOnMainThread(widget.forget());
-    }
-    mMirroringWidget = aWindow;
-}
-
-nsWindow*
-nsScreenGonk::GetMirroringWidget()
-{
-    MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
-    MOZ_ASSERT(IsPrimaryScreen());
-
-    return mMirroringWidget;
-}
-
-NS_IMPL_ISUPPORTS(nsScreenManagerGonk, nsIScreenManager)
-
-nsScreenManagerGonk::nsScreenManagerGonk()
-    : mInitialized(false)
-#if ANDROID_VERSION >= 19
-    , mDisplayEnabled(false)
-#endif
-{
-}
-
-nsScreenManagerGonk::~nsScreenManagerGonk()
-{
-}
-
-static StaticRefPtr<nsScreenManagerGonk> sScreenManagerGonk;
-
-/* static */ already_AddRefed<nsScreenManagerGonk>
-nsScreenManagerGonk::GetInstance()
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-    // Avoid creating nsScreenManagerGonk from content process.
-    if (!XRE_IsParentProcess()) {
-        MOZ_CRASH("Non-chrome processes should not get here.");
-    }
-
-    // Avoid creating multiple nsScreenManagerGonk instance inside main process.
-    if (!sScreenManagerGonk) {
-      sScreenManagerGonk = new nsScreenManagerGonk();
-      ClearOnShutdown(&sScreenManagerGonk);
-    }
-
-    RefPtr<nsScreenManagerGonk> screenMgr = sScreenManagerGonk.get();
-    return screenMgr.forget();
-}
-
-/* static */ already_AddRefed< nsScreenGonk>
-nsScreenManagerGonk::GetPrimaryScreen()
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-    RefPtr<nsScreenManagerGonk> manager = nsScreenManagerGonk::GetInstance();
-    nsCOMPtr<nsIScreen> screen;
-    manager->GetPrimaryScreen(getter_AddRefs(screen));
-    MOZ_ASSERT(screen);
-    return already_AddRefed<nsScreenGonk>(
-        static_cast<nsScreenGonk*>(screen.forget().take()));
-}
-
-void
-nsScreenManagerGonk::Initialize()
-{
-    if (mInitialized) {
-        return;
-    }
-
-    mScreenOnEvent = new ScreenOnOffEvent(true);
-    mScreenOffEvent = new ScreenOnOffEvent(false);
-    GetGonkDisplay()->OnEnabled(displayEnabledCallback);
-
-    AddScreen(GonkDisplay::DISPLAY_PRIMARY);
-
-    nsAppShell::NotifyScreenInitialized();
-    mInitialized = true;
-}
-
-void
-nsScreenManagerGonk::DisplayEnabled(bool aEnabled)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-#if ANDROID_VERSION >= 19
-    /* Bug 1244044
-     * This function could be called before |mCompositorVsyncScheduler| is set.
-     * To avoid this issue, keep the value stored in |mDisplayEnabled|.
-     */
-    mDisplayEnabled = aEnabled;
-    if (mCompositorVsyncScheduler) {
-        mCompositorVsyncScheduler->SetDisplay(mDisplayEnabled);
-    }
-#endif
-
-    VsyncControl(aEnabled);
-    NS_DispatchToMainThread(aEnabled ? mScreenOnEvent : mScreenOffEvent);
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::GetPrimaryScreen(nsIScreen **outScreen)
-{
-    NS_IF_ADDREF(*outScreen = mScreens[0].get());
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::ScreenForId(uint32_t aId,
-                                 nsIScreen **outScreen)
-{
-    for (size_t i = 0; i < mScreens.Length(); i++) {
-        if (mScreens[i]->GetId() == aId) {
-            NS_IF_ADDREF(*outScreen = mScreens[i].get());
-            return NS_OK;
-        }
-    }
-
-    *outScreen = nullptr;
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::ScreenForRect(int32_t inLeft,
-                                   int32_t inTop,
-                                   int32_t inWidth,
-                                   int32_t inHeight,
-                                   nsIScreen **outScreen)
-{
-    // Since all screens have independent coordinate system, we could
-    // only return the primary screen no matter what rect is given.
-    return GetPrimaryScreen(outScreen);
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::ScreenForNativeWidget(void *aWidget, nsIScreen **outScreen)
-{
-    for (size_t i = 0; i < mScreens.Length(); i++) {
-        if (aWidget == mScreens[i]->GetNativeWindow()) {
-            NS_IF_ADDREF(*outScreen = mScreens[i].get());
-            return NS_OK;
-        }
-    }
-
-    *outScreen = nullptr;
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::GetNumberOfScreens(uint32_t *aNumberOfScreens)
-{
-    *aNumberOfScreens = mScreens.Length();
-    return NS_OK;
-}
-
-NS_IMETHODIMP
-nsScreenManagerGonk::GetSystemDefaultScale(float *aDefaultScale)
-{
-    *aDefaultScale = 1.0f;
-    return NS_OK;
-}
-
-void
-nsScreenManagerGonk::VsyncControl(bool aEnabled)
-{
-    if (!NS_IsMainThread()) {
-        NS_DispatchToMainThread(
-            NewRunnableMethod<bool>(this,
-                                    &nsScreenManagerGonk::VsyncControl,
-                                    aEnabled));
-        return;
-    }
-
-    MOZ_ASSERT(NS_IsMainThread());
-    VsyncSource::Display &display = gfxPlatform::GetPlatform()->GetHardwareVsync()->GetGlobalDisplay();
-    if (aEnabled) {
-        display.EnableVsync();
-    } else {
-        display.DisableVsync();
-    }
-}
-
-uint32_t
-nsScreenManagerGonk::GetIdFromType(GonkDisplay::DisplayType aDisplayType)
-{
-    // This is the only place where we make the assumption that
-    // display type is equivalent to screen id.
-
-    // Bug 1138287 will address the conversion from type to id.
-    return aDisplayType;
-}
-
-bool
-nsScreenManagerGonk::IsScreenConnected(uint32_t aId)
-{
-    for (size_t i = 0; i < mScreens.Length(); ++i) {
-        if (mScreens[i]->GetId() == aId) {
-            return true;
-        }
-    }
-
-    return false;
-}
-
-namespace {
-
-// A concrete class as a subject for 'display-changed' observer event.
-class DisplayInfo : public nsIDisplayInfo {
-public:
-    NS_DECL_ISUPPORTS
-
-    DisplayInfo(uint32_t aId, bool aConnected)
-        : mId(aId)
-        , mConnected(aConnected)
-    {
-    }
-
-    NS_IMETHODIMP GetId(int32_t *aId)
-    {
-        *aId = mId;
-        return NS_OK;
-    }
-
-    NS_IMETHODIMP GetConnected(bool *aConnected)
-    {
-        *aConnected = mConnected;
-        return NS_OK;
-    }
-
-private:
-    virtual ~DisplayInfo() {}
-
-    uint32_t mId;
-    bool mConnected;
-};
-
-NS_IMPL_ISUPPORTS(DisplayInfo, nsIDisplayInfo, nsISupports)
-
-class NotifyTask : public mozilla::Runnable {
-public:
-    NotifyTask(uint32_t aId, bool aConnected)
-        : mDisplayInfo(new DisplayInfo(aId, aConnected))
-    {
-    }
-
-    NS_IMETHOD Run() override
-    {
-        nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
-        if (os) {
-          os->NotifyObservers(mDisplayInfo, "display-changed", nullptr);
-        }
-
-        return NS_OK;
-    }
-private:
-    RefPtr<DisplayInfo> mDisplayInfo;
-};
-
-void
-NotifyDisplayChange(uint32_t aId, bool aConnected)
-{
-    NS_DispatchToMainThread(new NotifyTask(aId, aConnected));
-}
-
-} // end of unnamed namespace.
-
-nsresult
-nsScreenManagerGonk::AddScreen(GonkDisplay::DisplayType aDisplayType,
-                               android::IGraphicBufferProducer* aSink,
-                               NotifyDisplayChangedEvent aEventVisibility)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-    NS_ENSURE_TRUE(aDisplayType < GonkDisplay::DisplayType::NUM_DISPLAY_TYPES,
-                   NS_ERROR_FAILURE);
-
-    uint32_t id = GetIdFromType(aDisplayType);
-    NS_ENSURE_TRUE(!IsScreenConnected(id), NS_ERROR_FAILURE);
-
-    GonkDisplay::NativeData nativeData =
-        GetGonkDisplay()->GetNativeData(aDisplayType, aSink);
-    nsScreenGonk* screen = new nsScreenGonk(id,
-                                            aDisplayType,
-                                            nativeData,
-                                            aEventVisibility);
-    mScreens.AppendElement(screen);
-
-    if (aEventVisibility == NotifyDisplayChangedEvent::Observable) {
-        NotifyDisplayChange(id, true);
-    }
-
-    // By default, non primary screen does mirroring.
-    if (aDisplayType != GonkDisplay::DISPLAY_PRIMARY &&
-        gfxPrefs::ScreenMirroringEnabled()) {
-        screen->EnableMirroring();
-    }
-
-    return NS_OK;
-}
-
-nsresult
-nsScreenManagerGonk::RemoveScreen(GonkDisplay::DisplayType aDisplayType)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-    NS_ENSURE_TRUE(aDisplayType < GonkDisplay::DisplayType::NUM_DISPLAY_TYPES,
-                   NS_ERROR_FAILURE);
-
-    NotifyDisplayChangedEvent eventVisibility = NotifyDisplayChangedEvent::Observable;
-    uint32_t screenId = GetIdFromType(aDisplayType);
-    NS_ENSURE_TRUE(IsScreenConnected(screenId), NS_ERROR_FAILURE);
-
-    for (size_t i = 0; i < mScreens.Length(); i++) {
-        if (mScreens[i]->GetId() == screenId) {
-            if (mScreens[i]->IsMirroring()) {
-                mScreens[i]->DisableMirroring();
-            }
-            eventVisibility = mScreens[i]->GetEventVisibility();
-            mScreens.RemoveElementAt(i);
-            break;
-        }
-    }
-
-    if (eventVisibility == NotifyDisplayChangedEvent::Observable) {
-      NotifyDisplayChange(screenId, false);
-    }
-    return NS_OK;
-}
-
-#if ANDROID_VERSION >= 19
-void
-nsScreenManagerGonk::SetCompositorVsyncScheduler(mozilla::layers::CompositorVsyncScheduler *aObserver)
-{
-    MOZ_ASSERT(NS_IsMainThread());
-
-    // We assume on b2g that there is only 1 CompositorBridgeParent
-    MOZ_ASSERT(mCompositorVsyncScheduler == nullptr);
-    MOZ_ASSERT(aObserver);
-    mCompositorVsyncScheduler = aObserver;
-    mCompositorVsyncScheduler->SetDisplay(mDisplayEnabled);
-}
-#endif