Mark AutomationProxyTest.AppModalDialogTest as flaky. Dashboard shows 25 fail...

chrome/test/automation/automation_proxy_uitest.cc

 // Copyright (c) 2010 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 <string>
 
 #include "app/app_switches.h"
 #include "app/message_box_flags.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 1381 matching lines @@
   EXPECT_TRUE(edit->SetText(L"Roflcopter"));
   EXPECT_TRUE(edit->WaitForQuery(action_max_timeout_ms()));
   bool query_in_progress;
   EXPECT_TRUE(edit->IsQueryInProgress(&query_in_progress));
   EXPECT_FALSE(query_in_progress);
   std::vector<AutocompleteMatchData> matches;
   EXPECT_TRUE(edit->GetAutocompleteMatches(&matches));
   EXPECT_FALSE(matches.empty());
 }
 
-TEST_F(AutomationProxyTest, AppModalDialogTest) {
+// Flaky especially on Windows. See crbug.com/25039.
+TEST_F(AutomationProxyTest, FLAKY_AppModalDialogTest) {
   scoped_refptr<BrowserProxy> browser(automation()->GetBrowserWindow(0));
   ASSERT_TRUE(browser.get());
   scoped_refptr<TabProxy> tab(browser->GetTab(0));
   ASSERT_TRUE(tab.get());
 
   bool modal_dialog_showing = false;
   MessageBoxFlags::DialogButton button = MessageBoxFlags::DIALOGBUTTON_NONE;
   EXPECT_TRUE(automation()->GetShowingAppModalDialog(&modal_dialog_showing,
                                                      &button));
   EXPECT_FALSE(modal_dialog_showing);
@@ skipping 283 matching lines @@
   int diff_pixels_count = 0;
   for (int x = 0; x < img_size.width(); ++x) {
     for (int y = 0; y < img_size.height(); ++y) {
       if (*snapshot_bmp.getAddr32(x, y) != *reference_bmp.getAddr32(x, y)) {
         ++diff_pixels_count;
       }
     }
   }
   ASSERT_EQ(diff_pixels_count, 0);
 }