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 b818f20743b0ca9b7ece40ef3e74867b53f2b781..d394c3fca2e62a1dbd3110b2c84066c00133e537 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -2092,7 +2092,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(0u, host.MaxPartialTextureUpdates());
   }
@@ -2110,7 +2109,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(5u, host.MaxPartialTextureUpdates());
   }
@@ -2128,7 +2126,6 @@ TEST(LayerTreeHostTest, LimitPartialUpdates) {
     settings.max_partial_texture_updates = 10;
 
     LayerTreeHostWithProxy host(&client, settings, proxy.Pass());
-    host.OnCreateAndInitializeOutputSurfaceAttempted(true);
 
     EXPECT_EQ(10u, host.MaxPartialTextureUpdates());
   }
@@ -2690,8 +2687,7 @@ 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();
@@ -2885,8 +2881,7 @@ class LayerTreeHostTestDeferredInitialize : public LayerTreeHostTest {
     PostSetNeedsCommitToMainThread();
   }
 
-  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface(
-      bool fallback) override {
+  scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
     scoped_ptr<TestWebGraphicsContext3D> context3d(
         TestWebGraphicsContext3D::Create());
 
@@ -4404,8 +4399,7 @@ 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);
@@ -4546,8 +4540,7 @@ 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 {
@@ -5738,8 +5731,7 @@ 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);