Change cc files from namespace WebCore to cc

cc/LayerTextureSubImage.h

Index: cc/LayerTextureSubImage.h
diff --git a/cc/LayerTextureSubImage.h b/cc/LayerTextureSubImage.h
index bb63bf19b3d0c2148c9cf950db9e4051593e6a27..2c6cc14744430bf68e3ed2924d8051eefd40d1e1 100644
--- a/cc/LayerTextureSubImage.h
+++ b/cc/LayerTextureSubImage.h
@@ -17,7 +17,7 @@ namespace WebKit {
 class WebGraphicsContext3D;
 }
 
-namespace WebCore {
+namespace cc {
 
 class LayerTextureSubImage {
 public:
@@ -41,6 +41,6 @@ private:
     OwnArrayPtr<uint8_t> m_subImage;
 };
 
-} // namespace WebCore
+} // namespace cc
 #endif // USE(ACCELERATED_COMPOSITING)
 #endif // LayerTextureSubImage_h