Add ExecuteJavaScriptForTest and make all tests use it

chrome/browser/task_manager/task_manager_browsertest.cc

 // Copyright (c) 2012 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 "chrome/browser/task_manager/task_manager.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 239 matching lines @@
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchAboutBlankTab()));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(2, MatchAnyTab()));
   WebContents* tab1 = browser()->tab_strip_model()->GetActiveWebContents();
 
   // Initiate a navigation that will create a new WebContents in the same
   // SiteInstace...
   content::WebContentsAddedObserver web_contents_added_observer;
   tab1->GetMainFrame()->ExecuteJavaScriptWithUserGestureForTests(
       base::ASCIIToUTF16("window.open('title3.html', '_blank');"));
   // ... then immediately hang the renderer so that title3.html can't load.
-  tab1->GetMainFrame()->ExecuteJavaScript(base::ASCIIToUTF16("while(1);"));
+  tab1->GetMainFrame()->ExecuteJavaScriptForTests(
+      base::ASCIIToUTF16("while(1);"));
 
   // Blocks until a new WebContents appears.
   WebContents* tab2 = web_contents_added_observer.GetWebContents();
 
   // Make sure the new WebContents is in tab1's hung renderer process.
   ASSERT_NE(nullptr, tab2);
   ASSERT_NE(tab1, tab2);
   ASSERT_EQ(tab1->GetMainFrame()->GetProcess(),
             tab2->GetMainFrame()->GetProcess())
       << "New WebContents must be in the same process as the old WebContents, "
@@ skipping 934 matching lines @@
       WaitForTaskManagerRows(1, MatchTab("Title Of Awesomeness")));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, MatchAnySubframe()));
 
   HideTaskManager();
   ShowTaskManager();
 
   ASSERT_NO_FATAL_FAILURE(
       WaitForTaskManagerRows(1, MatchTab("Title Of Awesomeness")));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, MatchAnySubframe()));
 }