Remove more unnecessary ChromeURLRequestContext members.

chrome/browser/ui/webui/chrome_url_data_manager.h

Index: chrome/browser/ui/webui/chrome_url_data_manager.h
diff --git a/chrome/browser/ui/webui/chrome_url_data_manager.h b/chrome/browser/ui/webui/chrome_url_data_manager.h
index bed84d70101cef9f4bed0ddb22734964d7e77d03..99345de4c3ec30ba5cf52f690e9e99c1a6515b6b 100644
--- a/chrome/browser/ui/webui/chrome_url_data_manager.h
+++ b/chrome/browser/ui/webui/chrome_url_data_manager.h
@@ -8,6 +8,7 @@
 
 #include <string>
 
+#include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/task.h"
 #include "content/browser/browser_thread.h"
@@ -136,7 +137,8 @@ class ChromeURLDataManager {
     ChromeURLDataManagerBackend* backend_;
   };
 
-  explicit ChromeURLDataManager(Profile* profile);
+  explicit ChromeURLDataManager(
+      const base::Callback<ChromeURLDataManagerBackend*(void)>& backend);
   ~ChromeURLDataManager();
 
   // Adds a DataSource to the collection of data sources. This *must* be invoked
@@ -167,7 +169,7 @@ class ChromeURLDataManager {
   // was invoked).
   static bool IsScheduledForDeletion(const DataSource* data_source);
 
-  Profile* profile_;
+  const base::Callback<ChromeURLDataManagerBackend*(void)> backend_;
 
   // Lock used when accessing |data_sources_|.
   static base::Lock delete_lock_;