Rewrite std::string("") to std::string(), Linux edition.

chrome/browser/ui/webui/favicon_source.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/ui/webui/favicon_source.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
@@ skipping 235 matching lines @@
   if (bitmap_result.is_valid()) {
     // Forward the data along to the networking system.
     request.callback.Run(bitmap_result.bitmap_data);
   } else if (!HandleMissingResource(request)) {
     SendDefaultResponse(request);
   }
 }
 
 void FaviconSource::SendDefaultResponse(
     const content::URLDataSource::GotDataCallback& callback) {
-  SendDefaultResponse(IconRequest(callback,
-                                  "",
-                                  16,
-                                  ui::SCALE_FACTOR_100P));
+  SendDefaultResponse(
+      IconRequest(callback, std::string(), 16, ui::SCALE_FACTOR_100P));
 }
 
 void FaviconSource::SendDefaultResponse(const IconRequest& icon_request) {
   int favicon_index;
   int resource_id;
   switch (icon_request.size_in_dip) {
     case 64:
       favicon_index = SIZE_64;
       resource_id = IDR_DEFAULT_FAVICON_64;
       break;
@@ skipping 10 matching lines @@
 
   if (!default_favicon) {
     ui::ScaleFactor scale_factor = icon_request.scale_factor;
     default_favicon = ResourceBundle::GetSharedInstance()
         .LoadDataResourceBytesForScale(resource_id, scale_factor);
     default_favicons_[favicon_index] = default_favicon;
   }
 
   icon_request.callback.Run(default_favicon);
 }