Added completion notification to Profile's ClearNetworkingHistorySince.

chrome/browser/profiles/profile.h

Index: chrome/browser/profiles/profile.h
diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index 16c34e999dcdce9d4ee2b260ed1062c236a10fd6..27e5af7da08b44bd394f90706b1cf6ea390199a5 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -323,10 +323,11 @@ class Profile : public content::BrowserContext {
   virtual chrome_browser_net::Predictor* GetNetworkPredictor() = 0;
 
   // Deletes all network related data since |time|. It deletes transport
-  // security state since |time| and it also delete HttpServerProperties data.
-  // The implementation is free to run this on a background thread, so when this
-  // method returns data is not guaranteed to be deleted.
-  virtual void ClearNetworkingHistorySince(base::Time time) = 0;
+  // security state since |time| and it also deletes HttpServerProperties data.
+  // Works asynchronously, however if the |completion| callback is non-null, it
+  // will be posted on the UI thread once the removal process completes.

[mmenke, 2012/10/26 19:06:20]

May want to mention that completion may theoretically be called after the
deletion of the profile (In some similar cases with other classes, callbacks
would be cancelled).

[engedy, 2012/10/29 14:37:56]

Done.

+  virtual void ClearNetworkingHistorySince(base::Time time,
+                                           const base::Closure& completion) = 0;
 
   // Returns the home page for this profile.
   virtual GURL GetHomePage() = 0;