Enable webgl conformance tests under content/test/gpu in content_browsertests

content/test/content_browser_test_utils.h

 // 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.
 
 #ifndef CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_
 #define CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_
 
+#include <queue>
+
 #include "base/memory/ref_counted.h"
+#include "content/public/browser/notification_details.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/notification_source.h"
 #include "googleurl/src/gurl.h"
 #include "ui/gfx/native_widget_types.h"
 
 class FilePath;
 
 namespace gfx {
 class Rect;
 }
 
 // A collections of functions designed for use with content_browsertests.
@@ skipping 43 matching lines @@
 
  private:
   void ShellCreated(Shell* shell);
 
   Shell* shell_;
   scoped_refptr<MessageLoopRunner> runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellAddedObserver);
 };
 
+// Watches for responses from the DOMAutomationController and keeps them in a

[jam, 2012/09/21 20:39:39]

this is a duplicate of the same class in ui_test_utils.h. we don't duplicate
code.

move this class to content/public/test/browser_test_utils.h. see
http://www.chromium.org/developers/testing/browser-tests for more information
about the different test headers

+// queue. Useful for waiting for a message to be received.
+class DOMMessageQueue : public content::NotificationObserver {
+ public:
+  // Constructs a DOMMessageQueue and begins listening for messages from the
+  // DOMAutomationController. Do not construct this until the browser has
+  // started.
+  DOMMessageQueue();
+  virtual ~DOMMessageQueue();
+
+  // Removes all messages in the message queue.
+  void ClearQueue();
+
+  // Wait for the next message to arrive. |message| will be set to the next
+  // message, if not null. Returns true on success.
+  bool WaitForMessage(std::string* message) WARN_UNUSED_RESULT;
+
+  // Overridden content::NotificationObserver methods.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+ private:
+  content::NotificationRegistrar registrar_;
+  std::queue<std::string> message_queue_;
+  bool waiting_for_message_;
+  scoped_refptr<content::MessageLoopRunner> message_loop_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(DOMMessageQueue);
+};
+
 #if defined OS_MACOSX
 void SetWindowBounds(gfx::NativeWindow window, const gfx::Rect& bounds);
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_