Eliminate implicit conversion from scoped_refptr<T> to T*

webkit/plugins/ppapi/ppb_image_data_impl.h

 // Copyright (c) 2011 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 WEBKIT_PLUGINS_PPAPI_PPB_IMAGE_DATA_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPB_IMAGE_DATA_IMPL_H_
 
 #include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/ppb_image_data.h"
 #include "ppapi/shared_impl/ppb_image_data_shared.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/thunk/ppb_image_data_api.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 #include "webkit/plugins/webkit_plugins_export.h"
 
 namespace skia {
 class PlatformCanvas;
@@ skipping 71 matching lines @@
 // state. You must check is_valid() to make sure the image was successfully
 // mapped before using it.
 //
 // Example:
 //   ImageDataAutoMapper mapper(image_data);
 //   if (!mapper.is_valid())
 //     return utter_failure;
 //   image_data->mapped_canvas()->blah();  // Guaranteed valid.
 class ImageDataAutoMapper {
  public:
-  explicit ImageDataAutoMapper(PPB_ImageData_Impl* image_data)
+  explicit ImageDataAutoMapper(scoped_refptr<PPB_ImageData_Impl> image_data)
         : image_data_(image_data) {
     if (image_data_->is_mapped()) {
       is_valid_ = true;
       needs_unmap_ = false;
     } else {
       is_valid_ = needs_unmap_ = !!image_data_->Map();
     }
   }
 
   ~ImageDataAutoMapper() {
     if (needs_unmap_)
       image_data_->Unmap();
   }
 
   // Check this to see if the image was successfully mapped. If this is false,
   // the image could not be mapped and is unusable.
   bool is_valid() const { return is_valid_; }
 
  private:
-  PPB_ImageData_Impl* image_data_;
+  scoped_refptr<PPB_ImageData_Impl> image_data_;
   bool is_valid_;
   bool needs_unmap_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageDataAutoMapper);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPB_IMAGE_DATA_IMPL_H_