Delete //gpu/blink/ and WebGraphicsContext3DImpl.

third_party/WebKit/public/platform/WebGraphicsContext3D.h

Index: third_party/WebKit/public/platform/WebGraphicsContext3D.h
diff --git a/third_party/WebKit/public/platform/WebGraphicsContext3D.h b/third_party/WebKit/public/platform/WebGraphicsContext3D.h
index bcf2811e374a21e64688efa22d11c424e6c78161..134146eb64e6eb97bfef83162313421a23720a22 100644
--- a/third_party/WebKit/public/platform/WebGraphicsContext3D.h
+++ b/third_party/WebKit/public/platform/WebGraphicsContext3D.h
@@ -34,23 +34,8 @@
 #include "WebNonCopyable.h"
 
 namespace blink {
-class WebString;
-
-// This interface abstracts the operations performed by the
-// GraphicsContext3D in order to implement WebGL. Nearly all of the
-// methods exposed on this interface map directly to entry points in
-// the OpenGL ES 2.0 API.
 class WebGraphicsContext3D : public WebNonCopyable {
 public:
-    class WebGraphicsContextLostCallback {
-    public:
-        virtual void onContextLost() = 0;
-
-    protected:
-        virtual ~WebGraphicsContextLostCallback() { }
-    };
-
-    // This destructor needs to be public so that using classes can destroy instances if initialization fails.
     virtual ~WebGraphicsContext3D() { }
 };