Disable PluginPowerSaverBrowserTest.LargeCrossOriginObscured

chrome/browser/plugins/plugin_power_saver_browsertest.cc

 // Copyright 2015 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 <stdint.h>
 #include <string>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/stl_util.h"
@@ skipping 592 matching lines @@
       "    type='application/x-ppapi-tests' width='100' height='100' "
       "    poster='click_me.png'></object>"
       "<object id='plugin_large' data='http://a.com/fake2.swf' "
       "    type='application/x-ppapi-tests' width='400' height='500'>"
       "</object>");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin_small");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin_small_poster");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "plugin_large");
 }
 
-IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOriginObscured) {
+// Flaky on almost all platforms: crbug.com/648827.
+IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest,
+                       DISABLED_LargeCrossOriginObscured) {
   LoadHTML(
       "<div id='container' "
       "    style='width: 100px; height: 400px; overflow: hidden;'>"
       "  <object id='plugin' data='http://otherorigin.com/fake.swf' "
       "      type='application/x-ppapi-tests' width='400' height='500' "
       "      style='float: right;'>"
       "  </object>"
       "</div>");
   VerifyPluginIsThrottled(GetActiveWebContents(), "plugin");
   EXPECT_TRUE(VerifySnapshot(
@@ skipping 113 matching lines @@
       "<object id='tiny_cross_origin_1' data='http://a.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='3' height='3'>"
       "</object>"
       "<object id='tiny_cross_origin_2' data='http://a.com/fake.swf' "
       "    type='application/x-ppapi-tests' width='1' height='1'>"
       "</object>");
 
   VerifyPluginMarkedEssential(GetActiveWebContents(), "tiny_cross_origin_1");
   VerifyPluginMarkedEssential(GetActiveWebContents(), "tiny_cross_origin_2");
 }