First step to enable end-to-end testing of extensions through the

automation interface. This adds a method to turn on automation of
extension API functions, plumbing that redirects API requests
through the automation interface when appropriate, and a couple
of UITests that exercise the functionality.

See http://codereview.chromium.org/113277 for the original review.

Review URL: http://codereview.chromium.org/115427
Patch from Joi Sigurdsson <joi.sigurdsson@gmail.com>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16207 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 53 insertions, 0 deletions

diff --git a/chrome/browser/automation/automation_extension_function.h b/chrome/browser/automation/automation_extension_function.h
new file mode 100644
index 0000000..a399cd7
--- /dev/null
+++ b/chrome/browser/automation/automation_extension_function.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2009 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.
+
+// Defines AutomationExtensionFunction.
+
+#ifndef CHROME_BROWSER_AUTOMATION_AUTOMATION_EXTENSION_FUNCTION_H_
+#define CHROME_BROWSER_AUTOMATION_AUTOMATION_EXTENSION_FUNCTION_H_
+
+#include <string>
+
+#include "base/singleton.h"
+#include "chrome/browser/extensions/extension_function.h"
+
+class RenderViewHost;
+
+// An extension function that pipes the extension API call through the
+// automation interface, so that extensions can be tested using UITests.
+class AutomationExtensionFunction : public ExtensionFunction {
+ public:
+  AutomationExtensionFunction() { }
+
+  // ExtensionFunction implementation.
+  virtual void SetName(const std::string& name);
+  virtual void SetArgs(const std::string& args);
+  virtual const std::string GetResult();
+  virtual const std::string GetError();
+  virtual void Run();
+
+  static ExtensionFunction* Factory();
+
+  // If enabled, we set an instance of this function as the functor
+  // for all function names in ExtensionFunctionFactoryRegistry.
+  // If disabled, we restore the initial functions.
+  static void SetEnabled(bool enabled);
+
+  // Intercepts messages sent from the external host to check if they
+  // are actually responses to extension API calls.  If they are, redirects
+  // the message to view_host->SendExtensionResponse and returns true,
+  // otherwise returns false to indicate the message was not intercepted.
+  static bool InterceptMessageFromExternalHost(RenderViewHost* view_host,
+                                               const std::string& message,
+                                               const std::string& origin,
+                                               const std::string& target);
+
+ private:
+  static bool enabled_;
+  std::string name_;
+  std::string args_;
+  DISALLOW_COPY_AND_ASSIGN(AutomationExtensionFunction);
+};
+
+#endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_EXTENSION_FUNCTION_H_