Add more logging to track down flakiness (2).

content/browser/accessibility/accessibility_event_recorder_win.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/accessibility/accessibility_event_recorder.h"
 
 #include <oleacc.h>
 
 #include <string>
 
@@ skipping 158 matching lines @@
   HRESULT hr = AccessibleObjectFromWindow(
       hwnd,
       obj_id,
       IID_IAccessible,
       reinterpret_cast<void**>(browser_accessible.Receive()));
   if (!SUCCEEDED(hr)) {
     // Note: our event hook will pick up some superfluous events we
     // don't care about, so it's safe to just ignore these failures.
     // Same below for other HRESULT checks.
     LOG(INFO) << "Ignoring result " << hr << " from AccessibleObjectFromWindow";
+    TCHAR name[MAX_PATH];
+    GetClassName(hwnd, name, _countof(name));
+    LOG(INFO) << "Hwnd " << hwnd << " class is " << name;
     return;
   }
 
   base::win::ScopedVariant childid_variant(child_id);
   base::win::ScopedComPtr<IDispatch> dispatch;
   hr = browser_accessible->get_accChild(childid_variant, dispatch.Receive());
   if (!SUCCEEDED(hr) || !dispatch) {
     LOG(INFO) << "Ignoring result " << hr << " and result " << dispatch
               << " from get_accChild";
     return;
@@ skipping 51 matching lines @@
       }
     }
   }
 
   LOG(INFO) << "Got event log: " << log;
 
   event_logs_.push_back(log);
 }
 
 }  // namespace content