Invalidate m_image after GPU-GPU texture copy

third_party/WebKit/Source/platform/graphics/StaticBitmapImage.h

 // Copyright 2014 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 StaticBitmapImage_h
 #define StaticBitmapImage_h
 
 #include "platform/graphics/Image.h"
 #include "public/platform/WebExternalTextureMailbox.h"
 #include "third_party/khronos/GLES2/gl2.h"
@@ skipping 25 matching lines @@
     bool isTextureBacked() override;
     bool hasMailbox() { return m_mailbox.textureSize.width != 0 && m_mailbox.textureSize.height != 0; }
 
 protected:
     StaticBitmapImage(PassRefPtr<SkImage>);
     StaticBitmapImage(WebExternalTextureMailbox&);
 
 private:
     GLuint switchStorageToSkImage(WebGraphicsContext3DProvider*);
     bool switchStorageToMailbox(WebGraphicsContext3DProvider*);
-    GLuint textureIdForWebGL(WebGraphicsContext3DProvider*);
+    GLuint switchStorageToSkImageForWebGL(WebGraphicsContext3DProvider*);
 
     RefPtr<SkImage> m_image;
     WebExternalTextureMailbox m_mailbox;
     bool m_isOriginClean = true;
     // The premultiply info is stored here because the SkImage API
     // doesn't expose this info.
     bool m_isPremultiplied = true;
 };
 
 } // namespace blink
 
 #endif