Changed ChromeURLDataManager to a ProfileKeyedService and made a Factory for it.

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 75e540556d6827de1f069b14b15b76849cad7663..6ea06da3323632b36613bc7f631f1e7aa6f04fee 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -1065,12 +1065,13 @@ void ExtensionService::NotifyExtensionLoaded(const Extension* extension) {
   if (extension->HasHostPermission(GURL(chrome::kChromeUIFaviconURL))) {
     FaviconSource* favicon_source = new FaviconSource(profile_,
                                                       FaviconSource::FAVICON);
-    profile_->GetChromeURLDataManager()->AddDataSource(favicon_source);
+    ChromeURLDataManager::AddDataSource(profile_, favicon_source);
   }
   // Same for chrome://thumb/ resources.
   if (extension->HasHostPermission(GURL(chrome::kChromeUIThumbnailURL))) {
     ThumbnailSource* thumbnail_source = new ThumbnailSource(profile_);
-    profile_->GetChromeURLDataManager()->AddDataSource(thumbnail_source);
+    ChromeURLDataManagerFactory::GetForProfile(profile_)->
+        AddDataSource(thumbnail_source);
   }
 
   // TODO(mpcomplete): This ends up affecting all profiles. See crbug.com/80757.