Moves extension_icon_image and image_loader to extensions/browser

chrome/browser/extensions/extension_system_impl.cc

Index: chrome/browser/extensions/extension_system_impl.cc
diff --git a/chrome/browser/extensions/extension_system_impl.cc b/chrome/browser/extensions/extension_system_impl.cc
index a9d5dbb42a3a1442756878c669da32fbc7f6f06c..06550e392ccf253a87344d8fed9067dd63fd9137 100644
--- a/chrome/browser/extensions/extension_system_impl.cc
+++ b/chrome/browser/extensions/extension_system_impl.cc
@@ -13,6 +13,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/extensions/blacklist.h"
+#include "chrome/browser/extensions/chrome_component_extension_resource_manager.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/error_console/error_console.h"
 #include "chrome/browser/extensions/extension_error_reporter.h"
@@ -319,9 +320,13 @@ void ExtensionSystemImpl::Shared::Init(bool extensions_enabled) {
       }
     }
   }
+
+  ComponentExtensionResourceManager::Set(

[James Cook, 2014/06/17 22:01:04]

I would prefer to do this through ExtensionsBrowserClient, see later comment. 
This will require a bit of changes to tests, but TestExtensionsBrowserClient
could be helpful.

[Jun Mukai, 2014/06/17 23:53:02]

Done.

+      new ChromeComponentExtensionResourceManager());
 }
 
 void ExtensionSystemImpl::Shared::Shutdown() {
+  ComponentExtensionResourceManager::Set(NULL);
   if (extension_warning_service_) {
     extension_warning_service_->RemoveObserver(
         extension_warning_badge_service_.get());