[Extensions] Update developerPrivate API to use base-64 data urls for icons

chrome/browser/extensions/api/developer_private/developer_private_mangle.cc

 // Copyright 2015 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/extensions/api/developer_private/developer_private_mangle.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/common/extensions/api/developer_private.h"
 #include "extensions/browser/extension_error.h"
@@ skipping 36 matching lines @@
       break;
     case api::developer_private::EXTENSION_TYPE_SHARED_MODULE:
       // Old api doesn't account for this.
       break;
     default:
       NOTREACHED();
   }
   result->allow_file_access = info.file_access.is_active;
   result->wants_file_access = info.file_access.is_enabled;
 
+  result->icon_url = info.icon_url;
+
   result->incognito_enabled = info.incognito_access.is_active;
   result->allow_incognito = info.incognito_access.is_enabled;
 
   result->is_unpacked =
       info.location == api::developer_private::LOCATION_UNPACKED;
   result->allow_reload = result->is_unpacked;
   result->terminated =
       info.state == api::developer_private::EXTENSION_STATE_TERMINATED;
 
   if (info.path)
@@ skipping 51 matching lines @@
     view_copy->generated_background_page =
         view_copy->path == kGeneratedBackgroundPageFilename;
     result->views.push_back(view_copy);
   }
 
   return result;
 }
 
 }  // namespace developer_private_mangle
 }  // namespace extensions