Files.app: Separate Gallery.app should be the default handler for image files.

chrome/browser/chromeos/file_manager/file_browser_handlers.cc

 // 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.
 
 #include "chrome/browser/chromeos/file_manager/file_browser_handlers.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/i18n/case_conversion.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 472 matching lines @@
   (new FileBrowserHandlerExecutor(
       profile, extension, action_id))->Execute(file_urls, done);
   return true;
 }
 
 bool IsFallbackFileBrowserHandler(const file_tasks::TaskDescriptor& task) {
   return ((task.task_type == file_tasks::TASK_TYPE_FILE_BROWSER_HANDLER ||
            task.task_type == file_tasks::TASK_TYPE_FILE_HANDLER) &&
           (task.app_id == kFileManagerAppId ||
            task.app_id == kVideoPlayerAppId ||
+           task.app_id == kGalleryAppId ||
            task.app_id == extension_misc::kQuickOfficeComponentExtensionId ||
            task.app_id == extension_misc::kQuickOfficeInternalExtensionId ||
            task.app_id == extension_misc::kQuickOfficeExtensionId));
 }
 
 FileBrowserHandlerList FindFileBrowserHandlers(
     Profile* profile,
     const std::vector<GURL>& file_list) {
   FileBrowserHandlerList common_handlers;
   for (std::vector<GURL>::const_iterator it = file_list.begin();
@@ skipping 25 matching lines @@
       if (common_handlers.empty())
         return FileBrowserHandlerList();
     }
   }
 
   return common_handlers;
 }
 
 }  // namespace file_browser_handlers
 }  // namespace file_manager