devtools: avoid relying on the internal variables for browser

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 "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 47 matching lines @@
   for (DevToolsWindowTestings::iterator it(instances->begin());
        it != instances->end();
        ++it) {
     if ((*it)->devtools_window_ == window)
       return *it;
   }
   return NULL;
 }
 
 Browser* DevToolsWindowTesting::browser() {
-  return devtools_window_->browser_;
+  return devtools_window_->GetBrowser();
 }
 
 content::WebContents* DevToolsWindowTesting::main_web_contents() {
   return devtools_window_->main_web_contents_;
 }
 
 content::WebContents* DevToolsWindowTesting::toolbox_web_contents() {
   return devtools_window_->toolbox_web_contents_;
 }
 
@@ skipping 50 matching lines @@
   DevToolsWindow::OpenDevToolsWindowForWorker(
       profile, worker_agent);
   DevToolsWindow* window = DevToolsWindow::FindDevToolsWindow(worker_agent);
   WaitForDevToolsWindowLoad(window);
   return window;
 }
 
 // static
 void DevToolsWindowTesting::CloseDevToolsWindow(
     DevToolsWindow* window) {
-  if (window->is_docked_) {
+  if (window->IsDocked()) {
     window->CloseWindow();
   } else {
-    window->browser_->window()->Close();
+    window->GetBrowser()->window()->Close();
   }
 }
 
 // static
 void DevToolsWindowTesting::CloseDevToolsWindowSync(
     DevToolsWindow* window) {
   scoped_refptr<content::MessageLoopRunner> runner =
       new content::MessageLoopRunner;
   DevToolsWindowTesting::Get(window)->SetCloseCallback(runner->QuitClosure());
   CloseDevToolsWindow(window);
   runner->Run();
 }