Migrate chrome/browser files to histogram_macros.h includes.

chrome/browser/ui/cocoa/confirm_quit_panel_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 <Cocoa/Cocoa.h>
 #import <QuartzCore/QuartzCore.h>
 
 #import "chrome/browser/ui/cocoa/confirm_quit_panel_controller.h"
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #import "base/mac/sdk_forward_declarations.h"
-#include "base/metrics/histogram.h"
+#include "base/metrics/histogram_macros.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/cocoa/confirm_quit.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/prefs/pref_registry_simple.h"
 #import "ui/base/accelerators/platform_accelerator_cocoa.h"
@@ skipping 399 matching lines @@
   if (modifiers & NSAlternateKeyMask)
     [string appendString:@"\u2325"];
   if (modifiers & NSShiftKeyMask)
     [string appendString:@"\u21E7"];
 
   [string appendString:[item.characters() uppercaseString]];
   return string;
 }
 
 @end