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diff --git a/gfx/angle/src/tests/angle_unittests_utils.h b/gfx/angle/src/tests/angle_unittests_utils.h
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+++ b/gfx/angle/src/tests/angle_unittests_utils.h
@@ -0,0 +1,125 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// angle_unittests_utils.h:
+//   Helpers for mocking and unit testing.
+
+#ifndef TESTS_ANGLE_UNITTESTS_UTILS_H_
+#define TESTS_ANGLE_UNITTESTS_UTILS_H_
+
+#include "libANGLE/Surface.h"
+#include "libANGLE/renderer/ContextImpl.h"
+#include "libANGLE/renderer/EGLImplFactory.h"
+#include "libANGLE/renderer/GLImplFactory.h"
+
+namespace rx
+{
+
+// Useful when mocking a part of the GLImplFactory class
+class NullFactory : public GLImplFactory
+{
+  public:
+    NullFactory() {}
+
+    // Shader creation
+    CompilerImpl *createCompiler() override { return nullptr; }
+    ShaderImpl *createShader(const gl::ShaderState &data) override { return nullptr; }
+    ProgramImpl *createProgram(const gl::ProgramState &data) override { return nullptr; }
+
+    // Framebuffer creation
+    FramebufferImpl *createFramebuffer(const gl::FramebufferState &data) override
+    {
+        return nullptr;
+    }
+
+    // Texture creation
+    TextureImpl *createTexture(const gl::TextureState &data) override { return nullptr; }
+
+    // Renderbuffer creation
+    RenderbufferImpl *createRenderbuffer() override { return nullptr; }
+
+    // Buffer creation
+    BufferImpl *createBuffer(const gl::BufferState &state) override { return nullptr; }
+
+    // Vertex Array creation
+    VertexArrayImpl *createVertexArray(const gl::VertexArrayState &data) override
+    {
+        return nullptr;
+    }
+
+    // Query and Fence creation
+    QueryImpl *createQuery(GLenum type) override { return nullptr; }
+    FenceNVImpl *createFenceNV() override { return nullptr; }
+    FenceSyncImpl *createFenceSync() override { return nullptr; }
+
+    // Transform Feedback creation
+    TransformFeedbackImpl *createTransformFeedback(const gl::TransformFeedbackState &state) override
+    {
+        return nullptr;
+    }
+
+    // Sampler object creation
+    SamplerImpl *createSampler() override { return nullptr; }
+
+    std::vector<PathImpl *> createPaths(GLsizei range) override
+    {
+        return std::vector<PathImpl *>();
+    }
+};
+
+// A class with all the factory methods mocked.
+class MockGLFactory : public GLImplFactory
+{
+  public:
+    MOCK_METHOD1(createContext, ContextImpl *(const gl::ContextState &));
+    MOCK_METHOD0(createCompiler, CompilerImpl *());
+    MOCK_METHOD1(createShader, ShaderImpl *(const gl::ShaderState &));
+    MOCK_METHOD1(createProgram, ProgramImpl *(const gl::ProgramState &));
+    MOCK_METHOD1(createFramebuffer, FramebufferImpl *(const gl::FramebufferState &));
+    MOCK_METHOD1(createTexture, TextureImpl *(const gl::TextureState &));
+    MOCK_METHOD0(createRenderbuffer, RenderbufferImpl *());
+    MOCK_METHOD1(createBuffer, BufferImpl *(const gl::BufferState &));
+    MOCK_METHOD1(createVertexArray, VertexArrayImpl *(const gl::VertexArrayState &));
+    MOCK_METHOD1(createQuery, QueryImpl *(GLenum type));
+    MOCK_METHOD0(createFenceNV, FenceNVImpl *());
+    MOCK_METHOD0(createFenceSync, FenceSyncImpl *());
+    MOCK_METHOD1(createTransformFeedback,
+                 TransformFeedbackImpl *(const gl::TransformFeedbackState &));
+    MOCK_METHOD0(createSampler, SamplerImpl *());
+    MOCK_METHOD1(createPaths, std::vector<PathImpl *>(GLsizei));
+};
+
+class MockEGLFactory : public EGLImplFactory
+{
+  public:
+    MOCK_METHOD4(createWindowSurface,
+                 SurfaceImpl *(const egl::SurfaceState &,
+                               const egl::Config *,
+                               EGLNativeWindowType,
+                               const egl::AttributeMap &));
+    MOCK_METHOD3(createPbufferSurface,
+                 SurfaceImpl *(const egl::SurfaceState &,
+                               const egl::Config *,
+                               const egl::AttributeMap &));
+    MOCK_METHOD5(createPbufferFromClientBuffer,
+                 SurfaceImpl *(const egl::SurfaceState &,
+                               const egl::Config *,
+                               EGLenum,
+                               EGLClientBuffer,
+                               const egl::AttributeMap &));
+    MOCK_METHOD4(createPixmapSurface,
+                 SurfaceImpl *(const egl::SurfaceState &,
+                               const egl::Config *,
+                               NativePixmapType,
+                               const egl::AttributeMap &));
+    MOCK_METHOD3(createImage, ImageImpl *(EGLenum, egl::ImageSibling *, const egl::AttributeMap &));
+    MOCK_METHOD1(createContext, ContextImpl *(const gl::ContextState &));
+    MOCK_METHOD2(createStreamProducerD3DTextureNV12,
+                 StreamProducerImpl *(egl::Stream::ConsumerType, const egl::AttributeMap &));
+};
+
+}  // namespace rx
+
+#endif // TESTS_ANGLE_UNITTESTS_UTILS_H_