Make SingleThreadProxy a SchedulerClient

cc/test/layer_tree_test.cc

Index: cc/test/layer_tree_test.cc
diff --git a/cc/test/layer_tree_test.cc b/cc/test/layer_tree_test.cc
index 4493671c24d7d836b16f4569893154e257504eae..949c80215d79bf7c7de345b96f1da8f2d0fe7122 100644
--- a/cc/test/layer_tree_test.cc
+++ b/cc/test/layer_tree_test.cc
@@ -312,14 +312,6 @@ class LayerTreeHostClientForTesting : public LayerTreeHostClient,
     test_hooks_->DidCompleteSwapBuffers();
   }
 
-  virtual void ScheduleComposite() OVERRIDE {
-    test_hooks_->ScheduleComposite();
-  }
-
-  virtual void ScheduleAnimation() OVERRIDE {
-    test_hooks_->ScheduleAnimation();
-  }
-
   virtual void DidPostSwapBuffers() OVERRIDE {}
   virtual void DidAbortSwapBuffers() OVERRIDE {}
 
@@ -394,7 +386,6 @@ LayerTreeTest::LayerTreeTest()
       end_when_begin_returns_(false),
       timed_out_(false),
       scheduled_(false),
-      schedule_when_set_visible_true_(false),
       started_(false),
       ended_(false),
       delegating_renderer_(false),
@@ -558,15 +549,6 @@ void LayerTreeTest::Timeout() {
   EndTest();
 }
 
-void LayerTreeTest::ScheduleComposite() {
-  if (!started_ || scheduled_)
-    return;
-  scheduled_ = true;
-  main_task_runner_->PostTask(
-      FROM_HERE,
-      base::Bind(&LayerTreeTest::DispatchComposite, main_thread_weak_ptr_));
-}
-
 void LayerTreeTest::RealEndTest() {
   if (layer_tree_host_ && !timed_out_ &&
       proxy()->MainFrameWillHappenForTesting()) {
@@ -619,16 +601,8 @@ void LayerTreeTest::DispatchSetNeedsRedrawRect(const gfx::Rect& damage_rect) {
 
 void LayerTreeTest::DispatchSetVisible(bool visible) {
   DCHECK(!proxy() || proxy()->IsMainThread());
-
-  if (!layer_tree_host_)
-    return;
-
-  layer_tree_host_->SetVisible(visible);
-
-  // If the LTH is being made visible and a previous ScheduleComposite() was
-  // deferred because the LTH was not visible, re-schedule the composite now.
-  if (layer_tree_host_->visible() && schedule_when_set_visible_true_)
-    ScheduleComposite();
+  if (layer_tree_host_)
+    layer_tree_host_->SetVisible(visible);
 }
 
 void LayerTreeTest::DispatchSetNextCommitForcesRedraw() {
@@ -638,24 +612,6 @@ void LayerTreeTest::DispatchSetNextCommitForcesRedraw() {
     layer_tree_host_->SetNextCommitForcesRedraw();
 }
 
-void LayerTreeTest::DispatchComposite() {
-  scheduled_ = false;
-
-  if (!layer_tree_host_)
-    return;
-
-  // If the LTH is not visible, defer the composite until the LTH is made
-  // visible.
-  if (!layer_tree_host_->visible()) {
-    schedule_when_set_visible_true_ = true;
-    return;
-  }
-
-  schedule_when_set_visible_true_ = false;
-  base::TimeTicks now = gfx::FrameTime::Now();
-  layer_tree_host_->Composite(now);
-}
-
 void LayerTreeTest::RunTest(bool threaded,
                             bool delegating_renderer,
                             bool impl_side_painting) {