Fix remaining cc files to compile with Clang

cc/CCDelegatedRendererLayerImpl.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CCDelegatedRendererLayerImpl_h
 #define CCDelegatedRendererLayerImpl_h
 
 #include "CCLayerImpl.h"
 
 namespace cc {
@@ skipping 20 matching lines @@
 
 private:
     explicit CCDelegatedRendererLayerImpl(int);
 
     CCRenderPass::Id convertDelegatedRenderPassId(CCRenderPass::Id delegatedRenderPassId) const;
 
     void appendRenderPassQuads(CCQuadSink&, CCAppendQuadsData&, CCRenderPass* fromDelegatedRenderPass) const;
 
     PassOwnPtr<CCDrawQuad> createCopyOfQuad(const CCDrawQuad*);
 
-    virtual const char* layerTypeAsString() const OVERRIDE { return "DelegatedRendererLayer"; }
+    virtual const char* layerTypeAsString() const OVERRIDE;
 
     OwnPtrVector<CCRenderPass> m_renderPassesInDrawOrder;
     HashMap<CCRenderPass::Id, int> m_renderPassesIndexById;
 };
 
 }
 
 #endif // CCDelegatedRendererLayerImpl_h