Move output surface fallback from cc to embedders

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index a1e82f8e9706a872aad42f6edf3f33756b0f38f0..11ab6db71d96cf5f7fd9de82b2c40ab12b7dffe8 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -2093,7 +2093,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(0u, host.MaxPartialTextureUpdates());
   }
@@ -2111,7 +2110,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(5u, host.MaxPartialTextureUpdates());
   }
@@ -2129,7 +2127,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(10u, host.MaxPartialTextureUpdates());
   }
@@ -2691,8 +2688,7 @@ class MockIOSurfaceWebGraphicsContext3D : public TestWebGraphicsContext3D {
 
 class LayerTreeHostTestIOSurfaceDrawing : public LayerTreeHostTest {
  protected:
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     scoped_ptr<MockIOSurfaceWebGraphicsContext3D> mock_context_owned(
         new MockIOSurfaceWebGraphicsContext3D);
     mock_context_ = mock_context_owned.get();
@@ -2886,8 +2882,7 @@ class LayerTreeHostTestDeferredInitialize : public LayerTreeHostTest {
     PostSetNeedsCommitToMainThread();
   }
 
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     scoped_ptr<TestWebGraphicsContext3D> context3d(
         TestWebGraphicsContext3D::Create());
 
@@ -4405,8 +4400,7 @@ class LayerTreeHostTestMaxTransferBufferUsageBytes : public LayerTreeHostTest {
     settings->use_one_copy = false;
   }
 
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     scoped_refptr<TestContextProvider> context_provider =
         TestContextProvider::Create();
     context_provider->SetMaxTransferBufferUsageBytes(512 * 512);
@@ -4547,8 +4541,7 @@ class LayerTreeHostTestSetMemoryPolicyOnLostOutputSurface
       : first_output_surface_memory_limit_(4321234),
         second_output_surface_memory_limit_(1234321) {}
 
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     if (!first_context_provider_.get()) {
       first_context_provider_ = TestContextProvider::Create();
     } else {
@@ -4813,9 +4806,7 @@ class LayerTreeHostTestBreakSwapPromiseForContextAbortedCommit
                    base::Unretained(this)));
   }
 
-  void FindOutputSurface() {
-    layer_tree_host()->OnCreateAndInitializeOutputSurfaceAttempted(true);
-  }
+  void FindOutputSurface() { layer_tree_host()->DidInitializeOutputSurface(); }
 
   void AfterTest() override {
     {
@@ -5691,8 +5682,7 @@ class LayerTreeHostTestCrispUpAfterPinchEndsWithOneCopy
     settings->use_one_copy = true;
   }
 
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     scoped_ptr<TestWebGraphicsContext3D> context3d =
         TestWebGraphicsContext3D::Create();
     context3d->set_support_image(true);