Allow PPB_ImageData_Impl to be created in a way that is compatible with unittests

content/renderer/pepper/pepper_graphics_2d_host.h

 // Copyright (c) 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 CONTENT_RENDERER_PEPPER_PEPPER_GRAPHICS_2D_HOST_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_GRAPHICS_2D_HOST_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 18 matching lines @@
 namespace content {
   
 class PepperPluginInstanceImpl;
 class PPB_ImageData_Impl;
 class RendererPpapiHost;
 
 class CONTENT_EXPORT PepperGraphics2DHost
     : public ppapi::host::ResourceHost,
       public base::SupportsWeakPtr<PepperGraphics2DHost> {
  public:
-  static PepperGraphics2DHost* Create(RendererPpapiHost* host,
-                                      PP_Instance instance,
-                                      PP_Resource resource,
-                                      const PP_Size& size,
-                                      PP_Bool is_always_opaque);
+  static PepperGraphics2DHost* Create(
+      RendererPpapiHost* host,
+      PP_Instance instance,
+      PP_Resource resource,
+      const PP_Size& size,
+      PP_Bool is_always_opaque,
+      scoped_refptr<PPB_ImageData_Impl> backing_store);
 
   virtual ~PepperGraphics2DHost();
 
   // ppapi::host::ResourceHost override.
   virtual int32_t OnResourceMessageReceived(
       const IPC::Message& msg,
       ppapi::host::HostMessageContext* context) OVERRIDE;
   virtual bool IsGraphics2DHost() OVERRIDE;
 
   bool ReadImageData(PP_Resource image,
@@ skipping 21 matching lines @@
   void SetScale(float scale);
   float GetScale() const;
   bool IsAlwaysOpaque() const;
   PPB_ImageData_Impl* ImageData();
 
  private:
   PepperGraphics2DHost(RendererPpapiHost* host,
                        PP_Instance instance,
                        PP_Resource resource);
 
-  bool Init(int width, int height, bool is_always_opaque);
+  bool Init(int width,
+            int height,
+            bool is_always_opaque,
+            scoped_refptr<PPB_ImageData_Impl> backing_store);
 
   int32_t OnHostMsgPaintImageData(ppapi::host::HostMessageContext* context,
                                   const ppapi::HostResource& image_data,
                                   const PP_Point& top_left,
                                   bool src_rect_specified,
                                   const PP_Rect& src_rect);
   int32_t OnHostMsgScroll(ppapi::host::HostMessageContext* context,
                           bool clip_specified,
                           const PP_Rect& clip,
                           const PP_Point& amount);
@@ skipping 82 matching lines @@
 
   bool texture_mailbox_modified_;
 
   friend class PepperGraphics2DHostTest;
   DISALLOW_COPY_AND_ASSIGN(PepperGraphics2DHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_GRAPHICS_2D_HOST_H_