Extensions: Split extensions utility IPC messages into its own file.

chrome/browser/extensions/chrome_extensions_browser_client.cc

Index: chrome/browser/extensions/chrome_extensions_browser_client.cc
diff --git a/chrome/browser/extensions/chrome_extensions_browser_client.cc b/chrome/browser/extensions/chrome_extensions_browser_client.cc
index b6524622b99133c0aace817f584672c6d1af7de9..4809828b4223541948723eb6aa025652c59b3c60 100644
--- a/chrome/browser/extensions/chrome_extensions_browser_client.cc
+++ b/chrome/browser/extensions/chrome_extensions_browser_client.cc
@@ -10,6 +10,8 @@
 #include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/activity_log/activity_log.h"
+#include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
+#include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
 #include "chrome/browser/extensions/api/preference/chrome_direct_setting.h"
 #include "chrome/browser/extensions/api/preference/preference_api.h"
 #include "chrome/browser/extensions/api/runtime/chrome_runtime_api_delegate.h"
@@ -38,17 +40,10 @@
 #include "chromeos/chromeos_switches.h"
 #endif
 
-#if defined(ENABLE_EXTENSIONS)
-#include "chrome/browser/extensions/api/chrome_extensions_api_client.h"
-#include "chrome/browser/extensions/api/content_settings/content_settings_service.h"
-#endif
-
 namespace extensions {
 
 ChromeExtensionsBrowserClient::ChromeExtensionsBrowserClient() {
-#if defined(ENABLE_EXTENSIONS)
   api_client_.reset(new ChromeExtensionsAPIClient);
-#endif
   // Only set if it hasn't already been set (e.g. by a test).
   if (GetCurrentChannel() == GetDefaultChannel())
     SetCurrentChannel(chrome::VersionInfo::GetChannel());
@@ -154,9 +149,7 @@ PrefService* ChromeExtensionsBrowserClient::GetPrefServiceForContext(
 void ChromeExtensionsBrowserClient::GetEarlyExtensionPrefsObservers(
     content::BrowserContext* context,
     std::vector<ExtensionPrefsObserver*>* observers) const {
-#if defined(ENABLE_EXTENSIONS)
   observers->push_back(ContentSettingsService::Get(context));
-#endif
 }
 
 bool ChromeExtensionsBrowserClient::DeferLoadingBackgroundHosts(
@@ -169,14 +162,10 @@ bool ChromeExtensionsBrowserClient::DeferLoadingBackgroundHosts(
   if (!g_browser_process->profile_manager()->IsValidProfile(profile))
     return true;
 
-#if defined(OS_ANDROID)
-  return false;
-#else
   // There are no browser windows open and the browser process was
   // started to show the app launcher.
   return chrome::GetTotalBrowserCountForProfile(profile) == 0 &&
          CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList);
-#endif
 }
 
 bool ChromeExtensionsBrowserClient::IsBackgroundPageAllowed(
@@ -247,10 +236,6 @@ ChromeExtensionsBrowserClient::GetExtensionSystemFactory() {
 
 void ChromeExtensionsBrowserClient::RegisterExtensionFunctions(
     ExtensionFunctionRegistry* registry) const {
-// TODO(rockot): Figure out if and why Android really needs to build
-// ChromeExtensionsBrowserClient and refactor so this ifdef isn't necessary.
-// See http://crbug.com/349436
-#if defined(ENABLE_EXTENSIONS)
   // Preferences.
   registry->RegisterFunction<extensions::GetPreferenceFunction>();
   registry->RegisterFunction<extensions::SetPreferenceFunction>();
@@ -269,7 +254,6 @@ void ChromeExtensionsBrowserClient::RegisterExtensionFunctions(
 
   // Generated APIs from Chrome.
   extensions::api::GeneratedFunctionRegistry::RegisterAll(registry);
-#endif
 }
 
 ComponentExtensionResourceManager*