Speculative fix for a bug that happens during Chrome Frame teardown while...

Speculative fix for a bug that happens during Chrome Frame teardown while there are pending IPC messages to be handled. Keep the ChromeFrameAutomationProxyImpl instance alive until all messages have been handled.

BUG=68869
TEST=No more crashes during handling of OnChannelError during teardown.

Review URL: http://codereview.chromium.org/6250015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71951 0039d316-1c4b-4281-b951-d872f2087c98

chrome_frame/chrome_frame_automation.cc

@@ -398,11 +398,12 @@ void AutomationProxyCacheEntry::RemoveDelegate(LaunchDelegate* delegate,
       if (snapshots_)
         SendUMAData();
 
-      // Take down the proxy since we no longer have any clients.
-      proxy_.reset(NULL);
-
       // Process pending notifications.
       thread_->message_loop()->RunAllPending();
+
+      // Take down the proxy since we no longer have any clients.
+      // Make sure we only do this once all pending messages have been cleared.
+      proxy_.reset(NULL);
     }
     // Be careful to remove from the list after running pending
     // tasks.  Otherwise the delegate being removed might miss out