Support single-threaded impl-side painting

cc/test/layer_tree_test.cc

 // Copyright 2011 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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 495 matching lines @@
           &LayerTreeTest::DispatchSetVisible, main_thread_weak_ptr_, visible));
 }
 
 void LayerTreeTest::PostSetNextCommitForcesRedrawToMainThread() {
   main_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&LayerTreeTest::DispatchSetNextCommitForcesRedraw,
                  main_thread_weak_ptr_));
 }
 
+void LayerTreeTest::PostCompositeImmediatelyToMainThread() {
+  main_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&LayerTreeTest::DispatchCompositeImmediately,
+                 main_thread_weak_ptr_));
+}
+
 void LayerTreeTest::WillBeginTest() {
   layer_tree_host_->SetLayerTreeHostClientReady();
 }
 
 void LayerTreeTest::DoBeginTest() {
   client_ = LayerTreeHostClientForTesting::Create(this);
 
   DCHECK(!impl_thread_ || impl_thread_->message_loop_proxy().get());
   layer_tree_host_ = LayerTreeHostForTesting::Create(
       this,
@@ skipping 95 matching lines @@
     layer_tree_host_->SetVisible(visible);
 }
 
 void LayerTreeTest::DispatchSetNextCommitForcesRedraw() {
   DCHECK(!proxy() || proxy()->IsMainThread());
 
   if (layer_tree_host_)
     layer_tree_host_->SetNextCommitForcesRedraw();
 }
 
+void LayerTreeTest::DispatchCompositeImmediately() {
+  DCHECK(!proxy() || proxy()->IsMainThread());
+  if (layer_tree_host_)
+    layer_tree_host_->Composite(gfx::FrameTime::Now());
+}
+
 void LayerTreeTest::RunTest(bool threaded,
                             bool delegating_renderer,
                             bool impl_side_painting) {
   if (threaded) {
     impl_thread_.reset(new base::Thread("Compositor"));
     ASSERT_TRUE(impl_thread_->Start());
   }
 
   main_task_runner_ = base::MessageLoopProxy::current();
 
@@ skipping 73 matching lines @@
   return -1;
 }
 
 void LayerTreeTest::DestroyLayerTreeHost() {
   if (layer_tree_host_ && layer_tree_host_->root_layer())
     layer_tree_host_->root_layer()->SetLayerTreeHost(NULL);
   layer_tree_host_ = nullptr;
 }
 
 }  // namespace cc