drive: Fix lifetime model of FileBrowserEventRouter

chrome/browser/chromeos/extensions/file_browser_private_api.h

Index: chrome/browser/chromeos/extensions/file_browser_private_api.h
diff --git a/chrome/browser/chromeos/extensions/file_browser_private_api.h b/chrome/browser/chromeos/extensions/file_browser_private_api.h
index ea88ebf1c893cefe8040406bf43c67ffb1e99133..4f192b6c805c0fe69fdad3b27f5fb2d936a7a366 100644
--- a/chrome/browser/chromeos/extensions/file_browser_private_api.h
+++ b/chrome/browser/chromeos/extensions/file_browser_private_api.h
@@ -57,12 +57,12 @@ class FileBrowserPrivateAPI : public ProfileKeyedService {
   // Convenience function to return the FileBrowserPrivateAPI for a Profile.
   static FileBrowserPrivateAPI* Get(Profile* profile);
 
-  scoped_refptr<FileBrowserEventRouter> event_router() {
-    return event_router_;
+  FileBrowserEventRouter* event_router() {
+    return event_router_.get();
   }
 
  private:
-  scoped_refptr<FileBrowserEventRouter> event_router_;
+  scoped_ptr<FileBrowserEventRouter> event_router_;
 };
 
 // Implements the chrome.fileBrowserPrivate.logoutUser method.
@@ -108,7 +108,7 @@ class FileWatchBrowserFunctionBase : public AsyncExtensionFunction {
   virtual ~FileWatchBrowserFunctionBase() {}
 
   virtual bool PerformFileWatchOperation(
-      scoped_refptr<FileBrowserEventRouter> event_router,
+      FileBrowserEventRouter* event_router,
       const base::FilePath& local_path, const base::FilePath& virtual_path,
       const std::string& extension_id) = 0;
 
@@ -118,7 +118,7 @@ class FileWatchBrowserFunctionBase : public AsyncExtensionFunction {
  private:
   void RespondOnUIThread(bool success);
   void RunFileWatchOperationOnFileThread(
-      scoped_refptr<FileBrowserEventRouter> event_router,
+      FileBrowserEventRouter* event_router,
       const fileapi::FileSystemURL& file_url,
       const std::string& extension_id);
 };
@@ -133,7 +133,7 @@ class AddFileWatchBrowserFunction : public FileWatchBrowserFunctionBase {
   virtual ~AddFileWatchBrowserFunction() {}
 
   virtual bool PerformFileWatchOperation(
-      scoped_refptr<FileBrowserEventRouter> event_router,
+      FileBrowserEventRouter* event_router,
       const base::FilePath& local_path, const base::FilePath& virtual_path,
       const std::string& extension_id) OVERRIDE;
 };
@@ -149,7 +149,7 @@ class RemoveFileWatchBrowserFunction : public FileWatchBrowserFunctionBase {
   virtual ~RemoveFileWatchBrowserFunction() {}
 
   virtual bool PerformFileWatchOperation(
-      scoped_refptr<FileBrowserEventRouter> event_router,
+      FileBrowserEventRouter* event_router,
       const base::FilePath& local_path, const base::FilePath& virtual_path,
       const std::string& extension_id) OVERRIDE;
 };