browser: Move FindBrowserWithWebContents() into chrome namespace.

chrome/browser/tab_contents/web_drag_bookmark_handler_mac.mm

 // 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/tab_contents/web_drag_bookmark_handler_mac.h"
 
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
@@ skipping 33 matching lines @@
 void WebDragBookmarkHandlerMac::OnDrop() {
   // This is non-null if the web_contents_ is showing an ExtensionWebUI with
   // support for (at the moment experimental) drag and drop extensions.
   if (bookmark_tab_helper_) {
     if (bookmark_tab_helper_->GetBookmarkDragDelegate()) {
       bookmark_tab_helper_->GetBookmarkDragDelegate()->OnDrop(
           bookmark_drag_data_);
     }
 
     // Focus the target browser.
-    Browser* browser = browser::FindBrowserWithWebContents(web_contents_);
+    Browser* browser = chrome::FindBrowserWithWebContents(web_contents_);
     if (browser)
       browser->window()->Show();
   }
 }
 
 void WebDragBookmarkHandlerMac::OnDragLeave() {
   if (bookmark_tab_helper_ && bookmark_tab_helper_->GetBookmarkDragDelegate()) {
     bookmark_tab_helper_->GetBookmarkDragDelegate()->OnDragLeave(
         bookmark_drag_data_);
   }
 }