DevTools: respect isUnderTest conditions in the browser tests.

chrome/browser/devtools/devtools_window_testing.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 "chrome/browser/devtools/devtools_window_testing.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 94 matching lines @@
   base::string16 harness = base::UTF8ToUTF16(
       content::DevToolsFrontendHost::GetFrontendResource(kHarnessScript));
   window->main_web_contents_->GetMainFrame()->ExecuteJavaScript(harness);
 }
 
 // static
 DevToolsWindow* DevToolsWindowTesting::OpenDevToolsWindowSync(
     content::WebContents* inspected_web_contents,
     bool is_docked) {
   std::string settings = is_docked ?
-      "{\"currentDockState\":\"\\\"bottom\\\"\"}" :
-      "{\"currentDockState\":\"\\\"undocked\\\"\"}";
+      "{\"isUnderTest\": true, \"currentDockState\":\"\\\"bottom\\\"\"}" :
+      "{\"isUnderTest\": true, \"currentDockState\":\"\\\"undocked\\\"\"}";
   scoped_refptr<content::DevToolsAgentHost> agent(
       content::DevToolsAgentHost::GetOrCreateFor(inspected_web_contents));
   DevToolsWindow::ToggleDevToolsWindow(
         inspected_web_contents, true, DevToolsToggleAction::Show(), settings);
   DevToolsWindow* window = DevToolsWindow::FindDevToolsWindow(agent.get());
   WaitForDevToolsWindowLoad(window);
   return window;
 }
 
 // static
@@ skipping 71 matching lines @@
 
 DevToolsWindow* DevToolsWindowCreationObserver::devtools_window() {
   return !devtools_windows_.empty() ? devtools_windows_.back() : nullptr;
 }
 
 void DevToolsWindowCreationObserver::CloseAllSync() {
   for (DevToolsWindow* window : devtools_windows_)
     DevToolsWindowTesting::CloseDevToolsWindowSync(window);
   devtools_windows_.clear();
 }