Fix remaining cc files to compile with Clang

cc/LayerChromium.cpp

Index: cc/LayerChromium.cpp
diff --git a/cc/LayerChromium.cpp b/cc/LayerChromium.cpp
index 59a63eff8e0db77d6557992b2e047f6dc01036ba..b053403fb81b3efd3af8aee6542ba54d102981f8 100644
--- a/cc/LayerChromium.cpp
+++ b/cc/LayerChromium.cpp
@@ -262,6 +262,11 @@ void LayerChromium::setBackgroundColor(SkColor backgroundColor)
     setNeedsCommit();
 }
 
+IntSize LayerChromium::contentBounds() const
+{
+    return bounds();
+}
+
 void LayerChromium::setMasksToBounds(bool masksToBounds)
 {
     if (m_masksToBounds == masksToBounds)
@@ -316,6 +321,11 @@ void LayerChromium::setBackgroundFilters(const WebKit::WebFilterOperations& back
         CCLayerTreeHost::setNeedsFilterContext(true);
 }
 
+bool LayerChromium::needsDisplay() const
+{
+    return m_needsDisplay;
+}
+
 void LayerChromium::setOpacity(float opacity)
 {
     if (m_opacity == opacity)
@@ -568,6 +578,21 @@ PassOwnPtr<CCLayerImpl> LayerChromium::createCCLayerImpl()
     return CCLayerImpl::create(m_layerId);
 }
 
+bool LayerChromium::drawsContent() const
+{
+    return m_isDrawable;
+}
+
+bool LayerChromium::needMoreUpdates()
+{
+    return false;
+}
+
+bool LayerChromium::needsContentsScale() const
+{
+    return false;
+}
+
 void LayerChromium::setDebugBorderColor(SkColor color)
 {
     m_debugBorderColor = color;
@@ -620,6 +645,16 @@ bool LayerChromium::descendantDrawsContent()
     return false;
 }
 
+int LayerChromium::id() const
+{
+    return m_layerId;
+}
+
+float LayerChromium::opacity() const
+{
+    return m_opacity;
+}
+
 void LayerChromium::setOpacityFromAnimation(float opacity)
 {
     // This is called due to an ongoing accelerated animation. Since this animation is
@@ -628,6 +663,11 @@ void LayerChromium::setOpacityFromAnimation(float opacity)
     m_opacity = opacity;
 }
 
+const WebKit::WebTransformationMatrix& LayerChromium::transform() const
+{
+    return m_transform;
+}
+
 void LayerChromium::setTransformFromAnimation(const WebTransformationMatrix& transform)
 {
     // This is called due to an ongoing accelerated animation. Since this animation is
@@ -721,6 +761,11 @@ Region LayerChromium::visibleContentOpaqueRegion() const
     return Region();
 }
 
+ScrollbarLayerChromium* LayerChromium::toScrollbarLayerChromium()
+{
+    return 0;
+}
+
 void sortLayers(Vector<RefPtr<LayerChromium> >::iterator, Vector<RefPtr<LayerChromium> >::iterator, void*)
 {
     // Currently we don't use z-order to decide what to paint, so there's no need to actually sort LayerChromiums.