Make CopyTextureCHROMIUM restore its own state

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h

Index: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
index 933bf6592c44305db8d4fdbf5961124e34194c56..fc297dfc4d839a1e2b91a4afefd6d70adadb254f 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
+++ b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h
@@ -7,6 +7,13 @@
 
 #include "gpu/command_buffer/service/gl_utils.h"
 
+namespace gpu {
+namespace gles2 {
+
+class GLES2Decoder;
+
+}  // namespace gles2.
+
 // This class encapsulates the resources required to implement the
 // GL_CHROMIUM_copy_texture extension.  The copy operation is performed
 // via a blit to a framebuffer object.
@@ -14,11 +21,13 @@ class CopyTextureCHROMIUMResourceManager {
  public:
   CopyTextureCHROMIUMResourceManager() : initialized_(false) {}
 
-  void Initialize();
+  void Initialize(const gles2::GLES2Decoder* decoder);
   void Destroy();
 
-  void DoCopyTexture(GLenum target, GLuint source_id, GLuint dest_id,
-                     GLint level, bool flip_y, bool premultiply_alpha,
+  void DoCopyTexture(const gles2::GLES2Decoder* decoder,
+                     GLenum target, GLuint source_id, GLuint dest_id,
+                     GLint level, GLsizei width, GLsizei height,
+                     bool flip_y, bool premultiply_alpha,
                      bool unpremultiply_alpha);
 
   // The attributes used during invocation of the extension.
@@ -37,6 +46,8 @@ class CopyTextureCHROMIUMResourceManager {
   DISALLOW_COPY_AND_ASSIGN(CopyTextureCHROMIUMResourceManager);
 };
 
+}  // namespace gpu.
+
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_