Prefer arraysize() over sizeof().

chrome/browser/browser_theme_provider.cc

 // Copyright (c) 2009 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/browser_theme_provider.h"
 
 #include "base/gfx/png_decoder.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/browser_list.h"
@@ skipping 107 matching lines @@
 // A map for kToolbarButtonIDs.
 static std::map<const int, bool> button_images_;
 
 // A map of frame image IDs to the tints for those ids.
 static std::map<const int, int> frame_tints_;
 
 BrowserThemeProvider::BrowserThemeProvider()
     : rb_(ResourceBundle::GetSharedInstance()) {
   static bool initialized = false;
   if (!initialized) {
-    for (size_t i = 0; i < sizeof(kToolbarButtonIDs); ++i) {
+    for (size_t i = 0; i < arraysize(kToolbarButtonIDs); ++i) {
       button_images_[kToolbarButtonIDs[i]] = true;
     }
     frame_tints_[IDR_THEME_FRAME] = TINT_FRAME;
     frame_tints_[IDR_THEME_FRAME_INACTIVE] = TINT_FRAME_INACTIVE;
     frame_tints_[IDR_THEME_FRAME_INCOGNITO] = TINT_FRAME_INCOGNITO;
     frame_tints_[IDR_THEME_FRAME_INCOGNITO_INACTIVE] =
         TINT_FRAME_INCOGNITO_INACTIVE;
   }
 }
 
@@ skipping 617 matching lines @@
     delete i->second;
   }
   image_cache_.clear();
 }
 
 #if defined(OS_WIN)
 void BrowserThemeProvider::FreePlatformCaches() {
   // Windows has no platform image cache to clear.
 }
 #endif