Provide ability for WebUIBrowserTests to run asynchronous tests.

chrome/browser/ui/webui/web_ui_test_handler.h

Index: chrome/browser/ui/webui/web_ui_test_handler.h
diff --git a/chrome/browser/ui/webui/web_ui_test_handler.h b/chrome/browser/ui/webui/web_ui_test_handler.h
index 4c2ea3855b7ace2f4b05ca71bd24885379677902..e99df7d371f0c8a469bf8dd6cc7af3a59a47a170 100644
--- a/chrome/browser/ui/webui/web_ui_test_handler.h
+++ b/chrome/browser/ui/webui/web_ui_test_handler.h
@@ -10,6 +10,12 @@
 #include "content/browser/webui/web_ui.h"
 #include "content/common/notification_observer.h"
 
+namespace base {
+
+class ListValue;
+
+}  // namespace base
+
 // This class registers test framework specific handlers on WebUI objects.
 class WebUITestHandler : public WebUIMessageHandler,
                          public NotificationObserver {
@@ -26,10 +32,21 @@ class WebUITestHandler : public WebUIMessageHandler,
   // error message on failure. Returns test pass/fail.
   bool RunJavaScriptTestWithResult(const string16& js_text);
 
+  // Runs a message loop until async test finishes.  Returns the result of the
+  // test.
+  bool WaitForAsyncResult();
+
  private:
   // WebUIMessageHandler overrides.
   // Add test handlers to the current WebUI object.
-  virtual void RegisterMessages() OVERRIDE {}
+  virtual void RegisterMessages() OVERRIDE;
+
+  // Receives asyncTestResult messages.
+  void HandleAsyncTestResult(const base::ListValue* test_result);
+
+  // Populates |success| from |test_result|, logging messages to ERROR, upon
+  // failure.
+  void HandleTestResult(const base::ListValue* test_result, bool* success);
 
   // From NotificationObserver.
   virtual void Observe(int type,
@@ -44,6 +61,15 @@ class WebUITestHandler : public WebUIMessageHandler,
 
   // Waiting for a test to finish.
   bool is_waiting_;
+
+  // Received async completion pass/fail;
+  bool test_done_async_;
+
+  // When |test_done_async_| is true, this is the pass/fail of the tests.
+  bool test_succeeded_async_;
+
+  // Waiting for an async test to finish.
+  bool is_waiting_async_;
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_WEB_UI_TEST_HANDLER_H_