Attempt 3 at: Splits ChromeURLDataManager into 2 chunks:...

chrome/browser/dom_ui/slideshow_ui.cc

Index: chrome/browser/dom_ui/slideshow_ui.cc
===================================================================
--- chrome/browser/dom_ui/slideshow_ui.cc	(revision 74394)
+++ chrome/browser/dom_ui/slideshow_ui.cc	(working copy)
@@ -148,14 +148,10 @@
 }
 
 WebUIMessageHandler* SlideshowHandler::Attach(DOMUI* dom_ui) {
-  // Create our favicon data source.
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      NewRunnableMethod(
-          ChromeURLDataManager::GetInstance(),
-          &ChromeURLDataManager::AddDataSource,
-          make_scoped_refptr(new WebUIFavIconSource(dom_ui->GetProfile()))));
   profile_ = dom_ui->GetProfile();
+  // Create our favicon data source.
+  profile_->GetChromeURLDataManager()->AddDataSource(
+      new WebUIFavIconSource(profile_));
   return WebUIMessageHandler::Attach(dom_ui);
 }
 
@@ -284,10 +280,5 @@
   SlideshowUIHTMLSource* html_source = new SlideshowUIHTMLSource();
 
   // Set up the chrome://slideshow/ source.
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      NewRunnableMethod(
-          ChromeURLDataManager::GetInstance(),
-          &ChromeURLDataManager::AddDataSource,
-          make_scoped_refptr(html_source)));
+  contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 }