cc: Abstract the LayerTreeHost.

cc/trees/layer_tree_host_unittest_picture.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include "cc/test/fake_content_layer_client.h"
 #include "cc/test/fake_picture_layer.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/layer_tree_test.h"
@@ skipping 28 matching lines @@
     picture_id1_ = root_picture_layer_->id();
     picture_id2_ = -1;
   }
 
   void BeginTest() override {
     activates_ = 0;
     PostSetNeedsCommitToMainThread();
   }
 
   void DidCommit() override {
-    switch (layer_tree_host()->source_frame_number()) {
+    switch (layer_tree_host()->SourceFrameNumber()) {
       case 1:
         // Activate while there are pending and active twins in place.
         layer_tree_host()->SetNeedsCommit();
         break;
       case 2:
         // Drop the picture layer from the tree so the activate will have an
         // active layer without a pending twin.
         root_picture_layer_->RemoveFromParent();
         break;
       case 3: {
@@ skipping 118 matching lines @@
         EXPECT_EQ(gfx::Size(768, 256), tile_size);
         break;
       case 1:
         // When the viewport changed size, the new frame's tiles should change
         // along with it.
         EXPECT_NE(gfx::Size(768, 256), tile_size);
     }
   }
 
   void DidCommit() override {
-    switch (layer_tree_host()->source_frame_number()) {
+    switch (layer_tree_host()->SourceFrameNumber()) {
       case 1:
         // Change the picture layer's size along with the viewport, so it will
         // consider picking a new tile size.
         picture_->SetBounds(gfx::Size(768, 1056));
         layer_tree()->SetViewportSize(gfx::Size(768, 1056));
         break;
       case 2:
         EndTest();
     }
   }
@@ skipping 180 matching lines @@
         EXPECT_GT(picture->tilings()->num_tilings(), 0u);
         break;
       case 2:
         // On 3rd commit, the layer is visible again, so has tilings.
         EXPECT_GT(picture->tilings()->num_tilings(), 0u);
         EndTest();
     }
   }
 
   void DidCommit() override {
-    switch (layer_tree_host()->source_frame_number()) {
+    switch (layer_tree_host()->SourceFrameNumber()) {
       case 1:
         // For the 2nd commit, change opacity to 0 so that the layer will not be
         // part of the visible frame.
         child_->SetOpacity(0.f);
         break;
       case 2:
         // For the 3rd commit, change opacity to 1 so that the layer will again
         // be part of the visible frame.
         child_->SetOpacity(1.f);
     }
@@ skipping 171 matching lines @@
   int last_frame_drawn_;
   bool ready_to_draw_;
 };
 
 // Multi-thread only because in single thread you can't pinch zoom on the
 // compositor thread.
 MULTI_THREAD_TEST_F(LayerTreeHostPictureTestRSLLMembershipWithScale);
 
 }  // namespace
 }  // namespace cc