browser: Move FindBrowserWithWebContents() into chrome namespace.

chrome/browser/ui/cocoa/constrained_window_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/ui/cocoa/constrained_window_mac.h"
 
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 #include "chrome/browser/ui/constrained_window_tab_helper.h"
@@ skipping 127 matching lines @@
 
   delegate_->DeleteDelegate();
   ConstrainedWindowTabHelper* constrained_window_tab_helper =
       ConstrainedWindowTabHelper::FromWebContents(web_contents_);
   constrained_window_tab_helper->WillClose(this);
 
   delete this;
 }
 
 bool ConstrainedWindowMac::CanShowConstrainedWindow() {
-  Browser* browser = browser::FindBrowserWithWebContents(web_contents_);
+  Browser* browser = chrome::FindBrowserWithWebContents(web_contents_);
   if (!browser)
     return true;
   return !browser->window()->IsInstantTabShowing();
 }
 
 void ConstrainedWindowMac::Realize(
     NSWindowController<ConstrainedWindowSupport>* controller) {
   if (!should_be_visible_)
     return;
 
   if (controller_ != nil) {
     DCHECK(controller_ == controller);
     return;
   }
   DCHECK(controller != nil);
 
   // Remember the controller we're adding ourselves to, so that we can later
   // remove us from it.
   controller_ = controller;
   delegate_->RunSheet([controller_ sheetController],
                       GetSheetParentViewForWebContents(web_contents_));
   delegate_->set_sheet_open(true);
 }