WIP: Browser image decoding using Mojo.

chrome/browser/extensions/webstore_install_helper.h

Index: chrome/browser/extensions/webstore_install_helper.h
diff --git a/chrome/browser/extensions/webstore_install_helper.h b/chrome/browser/extensions/webstore_install_helper.h
index 36cdd2440299d98d6934e9a2c5d51a9a49319e13..ccf0b666a6b834f559930c4f816a880eaba7a275 100644
--- a/chrome/browser/extensions/webstore_install_helper.h
+++ b/chrome/browser/extensions/webstore_install_helper.h
@@ -9,13 +9,12 @@
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "content/common/image_decoder.mojom.h"
 #include "content/public/browser/utility_process_host_client.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "url/gurl.h"
 
-class SkBitmap;
-
 namespace base {
 class DictionaryValue;
 class ListValue;
@@ -90,8 +89,7 @@ class WebstoreInstallHelper : public content::UtilityProcessHostClient,
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // Message handlers.
-  void OnDecodeImageSucceeded(const SkBitmap& decoded_image);
-  void OnDecodeImageFailed();
+  void OnDecodeImageDone(bool success, content::ImageDataPtr image);
   void OnJSONParseSucceeded(const base::ListValue& wrapper);
   void OnJSONParseFailed(const std::string& error_message);
 
@@ -117,6 +115,7 @@ class WebstoreInstallHelper : public content::UtilityProcessHostClient,
   net::URLRequestContextGetter* context_getter_; // Only usable on UI thread.
 
   base::WeakPtr<content::UtilityProcessHost> utility_host_;
+  content::ImageDecoderPtr image_decoder_;
 
   // Flags for whether we're done doing icon decoding and manifest parsing.
   bool icon_decode_complete_;