Introduce a stable set of errors for inline install

chrome/renderer/extensions/webstore_bindings.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 CHROME_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_
 #define CHROME_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_
 
 #include "base/compiler_specific.h"
+#include "chrome/common/extensions/webstore_install_result.h"
 #include "chrome/renderer/extensions/chrome_v8_extension_handler.h"
 #include "extensions/renderer/object_backed_native_handler.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 
 namespace extensions {
 
 // A V8 extension that creates an object at window.chrome.webstore. This object
 // allows JavaScript to initiate inline installs of apps that are listed in the
 // Chrome Web Store (CWS).
 class WebstoreBindings : public ObjectBackedNativeHandler,
                          public ChromeV8ExtensionHandler {
  public:
   explicit WebstoreBindings(ScriptContext* context);
 
   // IPC::Listener
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
  private:
   void Install(const v8::FunctionCallbackInfo<v8::Value>& args);
 
-  void OnInlineWebstoreInstallResponse(
-      int install_id, bool success, const std::string& error);
+  void OnInlineWebstoreInstallResponse(int install_id,
+                                       bool success,
+                                       const std::string& error,
+                                       webstore_install::Result result);
 
   void OnInlineInstallStageChanged(int stage);
 
   void OnInlineInstallDownloadProgress(int percent_downloaded);
 
   // Extracts a Web Store item ID from a <link rel="chrome-webstore-item"
   // href="https://chrome.google.com/webstore/detail/id"> node found in the
   // frame. On success, true will be returned and the |webstore_item_id|
   // parameter will be populated with the ID. On failure, false will be returned
   // and |error| will be populated with the error.
   static bool GetWebstoreItemIdFromFrame(
       blink::WebFrame* frame, const std::string& preferred_store_link_url,
       std::string* webstore_item_id, std::string* error);
 
   DISALLOW_COPY_AND_ASSIGN(WebstoreBindings);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_WEBSTORE_BINDINGS_H_