Fix CC*Renderer and CC*LayerImpl to compile with Clang

cc/CCLayerTreeHostImpl.cpp

Index: cc/CCLayerTreeHostImpl.cpp
diff --git a/cc/CCLayerTreeHostImpl.cpp b/cc/CCLayerTreeHostImpl.cpp
index 0c17573d8aa1894d358c1ff8869302a49adc6415..47e2cabf9f06aa23b58ffc142527ed3b5924362d 100644
--- a/cc/CCLayerTreeHostImpl.cpp
+++ b/cc/CCLayerTreeHostImpl.cpp
@@ -89,6 +89,14 @@ private:
     RefPtr<CCDelayBasedTimeSource> m_timeSource;
 };
 
+CCLayerTreeHostImpl::FrameData::FrameData()
+{
+}
+
+CCLayerTreeHostImpl::FrameData::~FrameData()
+{
+}
+
 PassOwnPtr<CCLayerTreeHostImpl> CCLayerTreeHostImpl::create(const CCLayerTreeSettings& settings, CCLayerTreeHostImplClient* client)
 {
     return adoptPtr(new CCLayerTreeHostImpl(settings, client));
@@ -587,6 +595,16 @@ bool CCLayerTreeHostImpl::swapBuffers()
     return m_renderer->swapBuffers();
 }
 
+const IntSize& CCLayerTreeHostImpl::deviceViewportSize() const
+{
+    return m_deviceViewportSize;
+}
+
+const CCLayerTreeSettings& CCLayerTreeHostImpl::settings() const
+{
+    return m_settings;
+}
+
 void CCLayerTreeHostImpl::didLoseContext()
 {
     m_client->didLoseContextOnImplThread();