Don't build EME-specific subroutines without EME.

- Checks for restricted or encrypted content
- Dispatching 'encrypted' events
- Dispatching 'key needed' events
- HTML Media Element media keys system
- EME telemetry
- HTML Media Element EME API

This is the main bulk for #26, isolating EME-specific code.

2 files changed, 65 insertions, 1 deletions

diff --git a/dom/html/HTMLMediaElement.cpp b/dom/html/HTMLMediaElement.cpp
index e81cd20bc..09a354c3d 100644
--- a/dom/html/HTMLMediaElement.cpp
+++ b/dom/html/HTMLMediaElement.cpp
@@ -11,7 +11,9 @@
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/MathAlgorithms.h"
 #include "mozilla/AsyncEventDispatcher.h"
+#ifdef MOZ_EME
 #include "mozilla/dom/MediaEncryptedEvent.h"
+#endif
 
 #include "base/basictypes.h"
 #include "nsIDOMHTMLMediaElement.h"
@@ -820,7 +822,9 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTM
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTextTrackManager)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAudioTrackList)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVideoTrackList)
+#ifdef MOZ_EME
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaKeys)
+#endif
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSelectedVideoStreamTrack)
 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
 
@@ -845,7 +849,9 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLMediaElement, nsGenericHTMLE
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mTextTrackManager)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mAudioTrackList)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mVideoTrackList)
+#ifdef MOZ_EME
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mMediaKeys)
+#endif
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mSelectedVideoStreamTrack)
 NS_IMPL_CYCLE_COLLECTION_UNLINK_END
 
@@ -1020,12 +1026,14 @@ void HTMLMediaElement::ShutdownDecoder()
 
 void HTMLMediaElement::AbortExistingLoads()
 {
+#ifdef MOZ_EME
   // If there is no existing decoder then we don't have anything to
   // report. This prevents reporting the initial load from an
   // empty video element as a failed EME load.
   if (mDecoder) {
     ReportEMETelemetry();
   }
+#endif
   // Abort any already-running instance of the resource selection algorithm.
   mLoadWaitStatus = NOT_WAITING;
 
@@ -1084,7 +1092,13 @@ void HTMLMediaElement::AbortExistingLoads()
   mDownloadSuspendedByCache = false;
   mMediaInfo = MediaInfo();
   mIsEncrypted = false;
+<<<<<<< HEAD
   mPendingEncryptedInitData.mInitDatas.Clear();
+=======
+#ifdef MOZ_EME
+  mPendingEncryptedInitData.Reset();
+#endif
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
   mWaitingForKey = NOT_WAITING_FOR_KEY;
   mSourcePointer = nullptr;
 
@@ -2681,9 +2695,11 @@ HTMLMediaElement::CaptureStreamInternal(bool aFinishWhenEnded,
   if (!window) {
     return nullptr;
   }
+#ifdef MOZ_EME
   if (ContainsRestrictedContent()) {
     return nullptr;
   }
+#endif
 
   if (!mOutputStreams.IsEmpty() &&
       aGraph != mOutputStreams[0].mStream->GetInputStream()->Graph()) {
@@ -3638,6 +3654,7 @@ void HTMLMediaElement::HiddenVideoStop()
   mVideoDecodeSuspendTimer = nullptr;
 }
 
+#ifdef MOZ_EME
 void
 HTMLMediaElement::ReportEMETelemetry()
 {
@@ -3649,6 +3666,7 @@ HTMLMediaElement::ReportEMETelemetry()
                        this, mLoadedDataFired ? "true" : "false"));
   }
 }
+#endif
 
 void
 HTMLMediaElement::ReportTelemetry()
@@ -3997,6 +4015,7 @@ nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder,
                               ms.mFinishWhenEnded);
   }
 
+#ifdef MOZ_EME
   if (mMediaKeys) {
     if (mMediaKeys->GetCDMProxy()) {
       mDecoder->SetCDMProxy(mMediaKeys->GetCDMProxy());
@@ -4006,6 +4025,7 @@ nsresult HTMLMediaElement::FinishDecoderSetup(MediaDecoder* aDecoder,
       return NS_ERROR_FAILURE;
     }
   }
+#endif
 
   MediaEventSource<void>* waitingForKeyProducer = mDecoder->WaitingForKeyEvent();
   // Not every decoder will produce waitingForKey events, only add ones that can
@@ -4468,7 +4488,11 @@ void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
 
   SetMediaInfo(*aInfo);
 
-  mIsEncrypted = aInfo->IsEncrypted() || mPendingEncryptedInitData.IsEncrypted();
+  mIsEncrypted = aInfo->IsEncrypted()
+#ifdef MOZ_EME
+                 || mPendingEncryptedInitData.IsEncrypted()
+#endif
+                 ;
   mTags = aTags.forget();
   mLoadedDataFired = false;
   ChangeReadyState(nsIDOMHTMLMediaElement::HAVE_METADATA);
@@ -4494,11 +4518,17 @@ void HTMLMediaElement::MetadataLoaded(const MediaInfo* aInfo,
       return;
     }
 
+#ifdef MOZ_EME
     // Dispatch a distinct 'encrypted' event for each initData we have.
     for (const auto& initData : mPendingEncryptedInitData.mInitDatas) {
       DispatchEncrypted(initData.mInitData, initData.mType);
     }
+<<<<<<< HEAD
     mPendingEncryptedInitData.mInitDatas.Clear();
+=======
+    mPendingEncryptedInitData.Reset();
+#endif
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
   }
 
   mWatchManager.ManualNotify(&HTMLMediaElement::UpdateReadyStateInternal);
@@ -5431,9 +5461,16 @@ void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement, bool aSuspendE
     UpdateAudioChannelPlayingState();
     if (aPauseElement) {
       ReportTelemetry();
+#ifdef MOZ_EME
       ReportEMETelemetry();
+#endif
 
+<<<<<<< HEAD
       // For EME content, force destruction of the CDM client (and CDM
+=======
+#ifdef MOZ_EME
+      // For EME content, we may force destruction of the CDM client (and CDM
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
       // instance if this is the last client for that CDM instance) and
       // the CDM's decoder. This ensures the CDM gets reliable and prompt
       // shutdown notifications, as it may have book-keeping it needs
@@ -5445,6 +5482,7 @@ void HTMLMediaElement::SuspendOrResumeElement(bool aPauseElement, bool aSuspendE
           ShutdownDecoder();
         }
       }
+#endif
       if (mDecoder) {
         mDecoder->Pause();
         mDecoder->Suspend();
@@ -5495,6 +5533,20 @@ void HTMLMediaElement::NotifyOwnerDocumentActivityChanged()
   bool pauseElement = ShouldElementBePaused();
   SuspendOrResumeElement(pauseElement, !IsActive());
 
+<<<<<<< HEAD
+=======
+#ifdef MOZ_EME
+  // If the owning document has become inactive we should shutdown the CDM.
+  if (!OwnerDoc()->IsCurrentActiveDocument() && mMediaKeys) {
+      mMediaKeys->Shutdown();
+      mMediaKeys = nullptr;
+      if (mDecoder) {
+        ShutdownDecoder();
+      }
+    }
+#endif
+
+>>>>>>> 8b6178ba9d... Don't build EME-specific subroutines without EME.
   AddRemoveSelfReference();
 }
 
@@ -6270,6 +6322,7 @@ HTMLMediaElement::OnVisibilityChange(Visibility aNewVisibility)
 
 }
 
+#ifdef MOZ_EME
 MediaKeys*
 HTMLMediaElement::GetMediaKeys() const
 {
@@ -6479,6 +6532,7 @@ HTMLMediaElement::GetTopLevelPrincipal()
   principal = doc->NodePrincipal();
   return principal.forget();
 }
+#endif //MOZ_EME
 
 void
 HTMLMediaElement::CannotDecryptWaitingForKey()
diff --git a/dom/html/HTMLMediaElement.h b/dom/html/HTMLMediaElement.h
index d40e9df46..b65049206 100644
--- a/dom/html/HTMLMediaElement.h
+++ b/dom/html/HTMLMediaElement.h
@@ -20,7 +20,9 @@
 #include "mozilla/dom/TextTrackManager.h"
 #include "mozilla/WeakPtr.h"
 #include "MediaDecoder.h"
+#ifdef MOZ_EME
 #include "mozilla/dom/MediaKeys.h"
+#endif
 #include "mozilla/StateWatching.h"
 #include "nsGkAtoms.h"
 #include "PrincipalChangeObserver.h"
@@ -630,6 +632,7 @@ public:
 
   // XPCOM MozPreservesPitch() is OK
 
+#ifdef MOZ_EME
   MediaKeys* GetMediaKeys() const;
 
   already_AddRefed<Promise> SetMediaKeys(MediaKeys* mediaKeys,
@@ -651,6 +654,7 @@ public:
   already_AddRefed<nsIPrincipal> GetTopLevelPrincipal();
 
   bool ContainsRestrictedContent();
+#endif // MOZ_EME
 
   void CannotDecryptWaitingForKey();
 
@@ -1198,7 +1202,9 @@ protected:
    */
   void HiddenVideoStop();
 
+#ifdef MOZ_EME
   void ReportEMETelemetry();
+#endif
 
   void ReportTelemetry();
 
@@ -1471,8 +1477,10 @@ protected:
   // Timer used to simulate video-suspend.
   nsCOMPtr<nsITimer> mVideoDecodeSuspendTimer;
 
+#ifdef MOZ_EME
   // Encrypted Media Extension media keys.
   RefPtr<MediaKeys> mMediaKeys;
+#endif
 
   // Stores the time at the start of the current 'played' range.
   double mCurrentPlayRangeStart;
@@ -1627,8 +1635,10 @@ protected:
   // Listens for waitingForKey events from the owned decoder.
   MediaEventListener mWaitingForKeyListener;
 
+#ifdef MOZ_EME
   // Init Data that needs to be sent in 'encrypted' events in MetadataLoaded().
   EncryptionInfo mPendingEncryptedInitData;
+#endif
 
   // True if the media's channel's download has been suspended.
   Watchable<bool> mDownloadSuspendedByCache;