Revert of Make SingleThreadProxy a SchedulerClient

ui/compositor/test/test_compositor_host_ozone.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 "ui/compositor/test/test_compositor_host.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "ui/compositor/compositor.h"
 #include "ui/gfx/rect.h"
 
 namespace ui {
 
 class TestCompositorHostOzone : public TestCompositorHost {
  public:
   TestCompositorHostOzone(const gfx::Rect& bounds,
                           ui::ContextFactory* context_factory);
   virtual ~TestCompositorHostOzone();
 
  private:
   // Overridden from TestCompositorHost:
   virtual void Show() OVERRIDE;
   virtual ui::Compositor* GetCompositor() OVERRIDE;
 
+  void Draw();
+
   gfx::Rect bounds_;
 
   ui::ContextFactory* context_factory_;
 
   scoped_ptr<ui::Compositor> compositor_;
 
   DISALLOW_COPY_AND_ASSIGN(TestCompositorHostOzone);
 };
 
 TestCompositorHostOzone::TestCompositorHostOzone(
@@ skipping 13 matching lines @@
   // TODO(rjkroege): Use a "real" ozone widget when it is
   // available: http://crbug.com/255128
   compositor_.reset(new ui::Compositor(1, context_factory_));
   compositor_->SetScaleAndSize(1.0f, bounds_.size());
 }
 
 ui::Compositor* TestCompositorHostOzone::GetCompositor() {
   return compositor_.get();
 }
 
+void TestCompositorHostOzone::Draw() {
+  if (compositor_.get())
+    compositor_->Draw();
+}
+
 // static
 TestCompositorHost* TestCompositorHost::Create(
     const gfx::Rect& bounds,
     ui::ContextFactory* context_factory) {
   return new TestCompositorHostOzone(bounds, context_factory);
 }
 
 }  // namespace ui