Chrome on Android : Begin removing references to themes.

chrome/browser/ui/prefs/prefs_tab_helper.cc

 // 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/prefs/prefs_tab_helper.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 346 matching lines @@
   per_tab_pref_change_registrar_.Init(per_tab_prefs_.get());
   for (int i = 0; i < kPerTabPrefsToObserveLength; ++i) {
       per_tab_pref_change_registrar_.Add(kPerTabPrefsToObserve[i], this);
   }
 
   renderer_preferences_util::UpdateFromSystemSettings(
       web_contents()->GetMutableRendererPrefs(), GetProfile());
 
   registrar_.Add(this, chrome::NOTIFICATION_USER_STYLE_SHEET_UPDATED,
                  content::NotificationService::AllSources());
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
+#if defined(OS_POSIX) && !defined(OS_MACOSX) && defined(ENABLE_THEMES)
   registrar_.Add(this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
                  content::Source<ThemeService>(
                      ThemeServiceFactory::GetForProfile(GetProfile())));
 #endif
 }
 
 PrefsTabHelper::~PrefsTabHelper() {
 }
 
 // static
@@ skipping 200 matching lines @@
   per_tab_pref_change_registrar_.RemoveAll();
 }
 
 void PrefsTabHelper::Observe(int type,
                              const content::NotificationSource& source,
                              const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_USER_STYLE_SHEET_UPDATED:
       UpdateWebPreferences();
       break;
-#if defined(OS_POSIX) && !defined(OS_MACOSX)
+#if defined(OS_POSIX) && !defined(OS_MACOSX) && defined(ENABLE_THEMES)
     case chrome::NOTIFICATION_BROWSER_THEME_CHANGED: {
       UpdateRendererPreferences();
       break;
     }
 #endif
     case chrome::NOTIFICATION_PREF_CHANGED: {
       std::string* pref_name_in = content::Details<std::string>(details).ptr();
       DCHECK(content::Source<PrefService>(source).ptr() ==
                  GetProfile()->GetPrefs() ||
              content::Source<PrefService>(source).ptr() == per_tab_prefs_);
@@ skipping 59 matching lines @@
 
 void PrefsTabHelper::UpdateRendererPreferences() {
   renderer_preferences_util::UpdateFromSystemSettings(
       web_contents()->GetMutableRendererPrefs(), GetProfile());
   web_contents()->GetRenderViewHost()->SyncRendererPrefs();
 }
 
 Profile* PrefsTabHelper::GetProfile() {
   return Profile::FromBrowserContext(web_contents()->GetBrowserContext());
 }