| Index: cc/test/layer_tree_test_common.cc | 
| diff --git a/cc/test/layer_tree_test_common.cc b/cc/test/layer_tree_test_common.cc | 
| index c3923a273d567fb4cad74ca6ff2953e45fdcc7d0..db46e18fa04ef0a6af39b76237f97641a460031b 100644 | 
| --- a/cc/test/layer_tree_test_common.cc | 
| +++ b/cc/test/layer_tree_test_common.cc | 
| @@ -88,9 +88,9 @@ scoped_ptr<WebCompositorOutputSurface> TestHooks::createOutputSurface() | 
| return FakeWebCompositorOutputSurface::create(CompositorFakeWebGraphicsContext3DWithTextureTracking::create(WebGraphicsContext3D::Attributes()).PassAs<WebKit::WebGraphicsContext3D>()).PassAs<WebKit::WebCompositorOutputSurface>(); | 
| } | 
|  | 
| -scoped_ptr<MockLayerTreeHostImpl> MockLayerTreeHostImpl::create(TestHooks* testHooks, const LayerTreeSettings& settings, LayerTreeHostImplClient* client) | 
| +scoped_ptr<MockLayerTreeHostImpl> MockLayerTreeHostImpl::create(TestHooks* testHooks, const LayerTreeSettings& settings, LayerTreeHostImplClient* client, Proxy* proxy) | 
| { | 
| -    return make_scoped_ptr(new MockLayerTreeHostImpl(testHooks, settings, client)); | 
| +    return make_scoped_ptr(new MockLayerTreeHostImpl(testHooks, settings, client, proxy)); | 
| } | 
|  | 
| void MockLayerTreeHostImpl::beginCommit() | 
| @@ -131,8 +131,8 @@ base::TimeDelta MockLayerTreeHostImpl::lowFrequencyAnimationInterval() const | 
| return base::TimeDelta::FromMilliseconds(16); | 
| } | 
|  | 
| -MockLayerTreeHostImpl::MockLayerTreeHostImpl(TestHooks* testHooks, const LayerTreeSettings& settings, LayerTreeHostImplClient* client) | 
| -    : LayerTreeHostImpl(settings, client) | 
| +MockLayerTreeHostImpl::MockLayerTreeHostImpl(TestHooks* testHooks, const LayerTreeSettings& settings, LayerTreeHostImplClient* client, Proxy* proxy) | 
| +    : LayerTreeHostImpl(settings, client, proxy) | 
| , m_testHooks(testHooks) | 
| { | 
| } | 
| @@ -140,10 +140,10 @@ MockLayerTreeHostImpl::MockLayerTreeHostImpl(TestHooks* testHooks, const LayerTr | 
| // Adapts LayerTreeHost for test. Injects MockLayerTreeHostImpl. | 
| class MockLayerTreeHost : public cc::LayerTreeHost { | 
| public: | 
| -    static scoped_ptr<MockLayerTreeHost> create(TestHooks* testHooks, cc::LayerTreeHostClient* client, scoped_refptr<cc::Layer> rootLayer, const cc::LayerTreeSettings& settings) | 
| +    static scoped_ptr<MockLayerTreeHost> create(TestHooks* testHooks, cc::LayerTreeHostClient* client, scoped_refptr<cc::Layer> rootLayer, const cc::LayerTreeSettings& settings, scoped_ptr<cc::Thread> implThread) | 
| { | 
| scoped_ptr<MockLayerTreeHost> layerTreeHost(new MockLayerTreeHost(testHooks, client, settings)); | 
| -        bool success = layerTreeHost->initialize(); | 
| +        bool success = layerTreeHost->initialize(implThread.Pass()); | 
| EXPECT_TRUE(success); | 
| layerTreeHost->setRootLayer(rootLayer); | 
|  | 
| @@ -157,7 +157,7 @@ public: | 
|  | 
| virtual scoped_ptr<cc::LayerTreeHostImpl> createLayerTreeHostImpl(cc::LayerTreeHostImplClient* client) | 
| { | 
| -        return MockLayerTreeHostImpl::create(m_testHooks, settings(), client).PassAs<cc::LayerTreeHostImpl>(); | 
| +        return MockLayerTreeHostImpl::create(m_testHooks, settings(), client, proxy()).PassAs<cc::LayerTreeHostImpl>(); | 
| } | 
|  | 
| virtual void didAddAnimation() OVERRIDE | 
| @@ -274,6 +274,7 @@ ThreadedTest::ThreadedTest() | 
| , m_finished(false) | 
| , m_scheduled(false) | 
| , m_started(false) | 
| +    , m_implThread(0) | 
| { | 
| } | 
|  | 
| @@ -345,11 +346,13 @@ void ThreadedTest::postDidAddAnimationToMainThread() | 
|  | 
| void ThreadedTest::doBeginTest() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| m_client = ThreadedMockLayerTreeHostClient::create(this); | 
|  | 
| scoped_refptr<Layer> rootLayer = Layer::create(); | 
| -    m_layerTreeHost = MockLayerTreeHost::create(this, m_client.get(), rootLayer, m_settings); | 
| +    scoped_ptr<cc::Thread> implCCThread(NULL); | 
| +    if (m_implThread) | 
| +        implCCThread = cc::ThreadImpl::createForDifferentThread(m_implThread->message_loop_proxy()); | 
| +    m_layerTreeHost = MockLayerTreeHost::create(this, m_client.get(), rootLayer, m_settings, implCCThread.Pass()); | 
| ASSERT_TRUE(m_layerTreeHost.get()); | 
| rootLayer->setLayerTreeHost(m_layerTreeHost.get()); | 
| m_layerTreeHost->setSurfaceReady(); | 
| @@ -383,13 +386,12 @@ void ThreadedTest::scheduleComposite() | 
|  | 
| void ThreadedTest::realEndTest() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| MessageLoop::current()->Quit(); | 
| } | 
|  | 
| void ThreadedTest::dispatchSetNeedsAnimate() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -400,7 +402,7 @@ void ThreadedTest::dispatchSetNeedsAnimate() | 
|  | 
| void ThreadedTest::dispatchAddInstantAnimation() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -411,7 +413,7 @@ void ThreadedTest::dispatchAddInstantAnimation() | 
|  | 
| void ThreadedTest::dispatchAddAnimation(Layer* layerToReceiveAnimation) | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -422,7 +424,7 @@ void ThreadedTest::dispatchAddAnimation(Layer* layerToReceiveAnimation) | 
|  | 
| void ThreadedTest::dispatchSetNeedsAnimateAndCommit() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -435,7 +437,7 @@ void ThreadedTest::dispatchSetNeedsAnimateAndCommit() | 
|  | 
| void ThreadedTest::dispatchSetNeedsCommit() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -446,7 +448,7 @@ void ThreadedTest::dispatchSetNeedsCommit() | 
|  | 
| void ThreadedTest::dispatchAcquireLayerTextures() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -457,7 +459,7 @@ void ThreadedTest::dispatchAcquireLayerTextures() | 
|  | 
| void ThreadedTest::dispatchSetNeedsRedraw() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -468,7 +470,7 @@ void ThreadedTest::dispatchSetNeedsRedraw() | 
|  | 
| void ThreadedTest::dispatchSetVisible(bool visible) | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -486,7 +488,7 @@ void ThreadedTest::dispatchComposite() | 
|  | 
| void ThreadedTest::dispatchDidAddAnimation() | 
| { | 
| -    DCHECK(Proxy::isMainThread()); | 
| +    DCHECK(!proxy() || proxy()->isMainThread()); | 
|  | 
| if (m_finished) | 
| return; | 
| @@ -504,25 +506,21 @@ void ThreadedTest::runTest(bool threaded) | 
| if (threaded) { | 
| m_implThread.reset(new base::Thread("ThreadedTest")); | 
| ASSERT_TRUE(m_implThread->Start()); | 
| -        m_implCCThread = cc::ThreadImpl::createForDifferentThread(m_implThread->message_loop_proxy()); | 
| -        cc::Proxy::setImplThread(m_implCCThread.get()); | 
| } | 
|  | 
| -    DCHECK(Proxy::isMainThread()); | 
| -    m_mainThreadProxy = ScopedThreadProxy::create(Proxy::mainThread()); | 
| +    m_mainCCThread = cc::ThreadImpl::createForCurrentThread(); | 
| +    m_mainThreadProxy = ScopedThreadProxy::create(m_mainCCThread.get()); | 
|  | 
| initializeSettings(m_settings); | 
|  | 
| -    cc::Proxy::mainThread()->postTask(base::Bind(&ThreadedTest::doBeginTest, base::Unretained(this))); | 
| +    m_mainCCThread->postTask(base::Bind(&ThreadedTest::doBeginTest, base::Unretained(this))); | 
| m_timeout.Reset(base::Bind(&ThreadedTest::timeout, base::Unretained(this))); | 
| -    cc::Proxy::mainThread()->postDelayedTask(m_timeout.callback(), 5000); | 
| +    m_mainCCThread->postDelayedTask(m_timeout.callback(), 5000); | 
| MessageLoop::current()->Run(); | 
| if (m_layerTreeHost.get() && m_layerTreeHost->rootLayer()) | 
| m_layerTreeHost->rootLayer()->setLayerTreeHost(0); | 
| m_layerTreeHost.reset(); | 
|  | 
| -    cc::Proxy::setImplThread(0); | 
| - | 
| m_timeout.Cancel(); | 
|  | 
| ASSERT_FALSE(m_layerTreeHost.get()); | 
|  |