Cleanup: Remove unneeded chrome/common/pref_names.h includes.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.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.
 
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include <cmath>
 #include <limits>
@@ skipping 30 matching lines @@
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_view.h"
 #include "chrome/browser/ui/find_bar/find_bar.h"
 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "chrome/browser/ui/tabs/tab_menu_model.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
 #include "chrome/browser/ui/tabs/tab_utils.h"
 #include "chrome/common/chrome_switches.h"
-#include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
 #include "components/omnibox/autocomplete_match.h"
 #include "components/url_fixer/url_fixer.h"
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/theme_resources.h"
 #include "skia/ext/skia_utils_mac.h"
@@ skipping 2251 matching lines @@
   // up the hierarchy to the devtools container view to avoid that. Note that
   // the devtools view is always in the hierarchy even if it is not open or it
   // is detached.
   NSView* devtools_view = [[[view superview] superview] superview];
   if (devtools_view) {
     return [devtools_view convertRect:[devtools_view bounds] toView:nil];
   } else {
     return [view convertRect:[view bounds] toView:nil];
   }
 }