Change cc files from namespace WebCore to cc

cc/TiledLayerChromium.cpp

Index: cc/TiledLayerChromium.cpp
diff --git a/cc/TiledLayerChromium.cpp b/cc/TiledLayerChromium.cpp
index 1a29940bc3f425b5d4f9f8f6f78df3080a8ef2ee..62c920239512024a5592562d95887b982c2ba9f2 100644
--- a/cc/TiledLayerChromium.cpp
+++ b/cc/TiledLayerChromium.cpp
@@ -21,7 +21,7 @@
 using namespace std;
 using WebKit::WebTransformationMatrix;
 
-namespace WebCore {
+namespace cc {
 
 class UpdatableTile : public CCLayerTilingData::Tile {
     WTF_MAKE_NONCOPYABLE(UpdatableTile);
@@ -144,7 +144,7 @@ void TiledLayerChromium::updateBounds()
     Region oldRegion(IntRect(IntPoint(), oldBounds));
     Region newRegion(IntRect(IntPoint(), newBounds));
     newRegion.subtract(oldRegion);
-    Vector<IntRect> rects = newRegion.rects();
+    Vector<WebCore::IntRect> rects = newRegion.rects();
     for (size_t i = 0; i < rects.size(); ++i)
         invalidateContentRect(rects[i]);
 }