Plugin Power Saver: Make posters work right when image is 404 Not Found.

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 "base/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ skipping 112 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargePluginsUsePosters) {
   LoadHTML(
       "<object id='plugin' type='application/x-ppapi-tests' "
       "    width='400' height='500'>"
       "  <param name='poster' value='snapshot1x.png 1x, snapshot2x.png 2x' />"
       "</object>");
   EXPECT_TRUE(IsPluginPeripheral("plugin"));
 }
 
+IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, SmallPluginWithPoster) {
+  LoadHTML(
+      "<object id='plugin' type='application/x-ppapi-tests' "
+      "    width='400' height='100'>"
+      "  <param name='poster' value='snapshot1x.png 1x, snapshot2x.png 2x' />"
+      "</object>");
+  EXPECT_TRUE(IsPluginPeripheral("plugin"));
+
+  SimulateClickAndAwaitMarkedEssential("plugin", gfx::Point(50, 50));
+}
+
 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, OriginWhitelisting) {
   LoadHTML(
       "<object id='plugin1' data='http://otherorigin.com/fake1.swf' "
       "type='application/x-ppapi-tests' width='400' height='100'></object>"
       "<object id='plugin2' data='http://otherorigin.com/fake2.swf' "
       "type='application/x-ppapi-tests' width='400' height='500'></object>");
   EXPECT_FALSE(IsPluginPeripheral("plugin1"));
   EXPECT_FALSE(IsPluginPeripheral("plugin2"));
 }
 
 IN_PROC_BROWSER_TEST_F(PluginPowerSaverBrowserTest, LargeCrossOriginObscured) {
   LoadHTML(
       "<div style='width: 100px; height: 100px; overflow: hidden;'>"
       "  <object id='plugin' data='http://otherorigin.com/fake.swf' "
       "  type='application/x-ppapi-tests' width='400' height='500'></object>"
       "</div>");
   EXPECT_TRUE(IsPluginPeripheral("plugin"));
 }