Rename WebKit namespace to blink (part 5)

cc/output/context_provider.h

Index: cc/output/context_provider.h
diff --git a/cc/output/context_provider.h b/cc/output/context_provider.h
index d87127c4c63c97ff1b6db193fe7c706aca7b2bc9..a996b2a5d3c3934b6445eb9afd309f314f371e97 100644
--- a/cc/output/context_provider.h
+++ b/cc/output/context_provider.h
@@ -10,7 +10,7 @@
 #include "cc/base/cc_export.h"
 
 class GrContext;
-namespace WebKit { class WebGraphicsContext3D; }
+namespace blink { class WebGraphicsContext3D; }
 namespace gpu { class ContextSupport; }
 
 namespace cc {
@@ -24,7 +24,7 @@ class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
   // from the same thread.
   virtual bool BindToCurrentThread() = 0;
 
-  virtual WebKit::WebGraphicsContext3D* Context3d() = 0;
+  virtual blink::WebGraphicsContext3D* Context3d() = 0;
   virtual gpu::ContextSupport* ContextSupport() = 0;
   virtual class GrContext* GrContext() = 0;