Added completion notification to Profile's ClearNetworkingHistorySince.

chrome/browser/profiles/profile_impl_io_data.h

Index: chrome/browser/profiles/profile_impl_io_data.h
diff --git a/chrome/browser/profiles/profile_impl_io_data.h b/chrome/browser/profiles/profile_impl_io_data.h
index 55740c584ec2b64583cae80c5778056da2909e35..ecbac12288b4f2564d1e6f39134df7522ec5af7a 100644
--- a/chrome/browser/profiles/profile_impl_io_data.h
+++ b/chrome/browser/profiles/profile_impl_io_data.h
@@ -71,13 +71,21 @@ class ProfileImplIOData : public ProfileIOData {
         GetIsolatedMediaRequestContextGetter(
             const std::string& app_id) const;
 
-    void ClearNetworkingHistorySince(base::Time time);
+    void ClearNetworkingHistorySince(base::Time time,
+                                     const base::Closure& completion);
 
    private:
+    friend class TestingProfile;
+
     typedef base::hash_map<std::string,
                            scoped_refptr<ChromeURLRequestContextGetter> >
         ChromeURLRequestContextGetterMap;
 
+    // Sets up a skeleton instance to be used by TestingProfile in unit tests.
+    // Gets the object into a virtually initialized state, but skips most of the
+    // usual initialization steps, and only creates what is needed for testing.
+    void InitForTesting() const;
+
     // Lazily initialize ProfileParams. We do this on the calls to
     // Get*RequestContextGetter(), so we only initialize ProfileParams right
     // before posting a task to the IO thread to start using them. This prevents
@@ -168,7 +176,8 @@ class ProfileImplIOData : public ProfileIOData {
                        net::FtpAuthCache* ftp_auth_cache) const;
 
   // Clears the networking history since |time|.
-  void ClearNetworkingHistorySinceOnIOThread(base::Time time);
+  void ClearNetworkingHistorySinceOnIOThread(base::Time time,
+                                             const base::Closure& completion);
 
   // Lazy initialization params.
   mutable scoped_ptr<LazyParams> lazy_params_;