cc: Use multiple PrepareTiles approaches

cc/trees/single_thread_proxy.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/trees/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/debug/benchmark_instrumentation.h"
@@ skipping 418 matching lines @@
     scheduler_on_impl_thread_->NotifyReadyToActivate();
 }
 
 void SingleThreadProxy::NotifyReadyToDraw() {
   TRACE_EVENT0("cc", "SingleThreadProxy::NotifyReadyToDraw");
   DebugScopedSetImplThread impl(this);
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->NotifyReadyToDraw();
 }
 
+void SingleThreadProxy::SetRequiresHighResToDraw(bool required) {
+  if (scheduler_on_impl_thread_)
+    scheduler_on_impl_thread_->SetRequiresHighResToDraw(required);
+}
+
 void SingleThreadProxy::SetNeedsRedrawOnImplThread() {
   client_->ScheduleComposite();
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetNeedsRedraw();
 }
 
 void SingleThreadProxy::SetNeedsAnimateOnImplThread() {
   client_->ScheduleComposite();
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetNeedsAnimate();
 }
 
-void SingleThreadProxy::SetNeedsPrepareTilesOnImplThread() {
+void SingleThreadProxy::SetNeedsPrepareTilesOnImplThread(bool for_commit) {
   TRACE_EVENT0("cc", "SingleThreadProxy::SetNeedsPrepareTilesOnImplThread");
   if (scheduler_on_impl_thread_)
-    scheduler_on_impl_thread_->SetNeedsPrepareTiles();
+    scheduler_on_impl_thread_->SetNeedsPrepareTiles(for_commit);
 }
 
 void SingleThreadProxy::SetNeedsRedrawRectOnImplThread(
     const gfx::Rect& damage_rect) {
   layer_tree_host_impl_->SetViewportDamage(damage_rect);
   SetNeedsRedrawOnImplThread();
 }
 
 void SingleThreadProxy::SetNeedsCommitOnImplThread() {
   client_->ScheduleComposite();
@@ skipping 48 matching lines @@
 
     // Synchronously call to CommitComplete. Resetting
     // |commit_blocking_task_runner| would make sure all tasks posted during
     // commit/activation before CommitComplete.
     CommitComplete();
   }
 
   timing_history_.DidActivateSyncTree();
 }
 
-void SingleThreadProxy::DidPrepareTiles() {
-  DCHECK(layer_tree_host_impl_->settings().impl_side_painting);
-  DCHECK(Proxy::IsImplThread());
-  if (scheduler_on_impl_thread_)
-    scheduler_on_impl_thread_->DidPrepareTiles();
-}
-
 void SingleThreadProxy::DidCompletePageScaleAnimationOnImplThread() {
   layer_tree_host_->DidCompletePageScaleAnimation();
 }
 
 void SingleThreadProxy::UpdateRendererCapabilitiesOnImplThread() {
   DCHECK(IsImplThread());
   renderer_capabilities_for_main_thread_ =
       layer_tree_host_impl_->GetRendererCapabilities().MainThreadCapabilities();
 }
 
@@ skipping 454 matching lines @@
       << "DidFinishImplFrame called while not inside an impl frame!";
   inside_impl_frame_ = false;
 #endif
 }
 
 void SingleThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) {
   layer_tree_host_->SendBeginFramesToChildren(args);
 }
 
 }  // namespace cc