Refactor AppWindow to enable code re-use with launcher pages.

apps/app_web_contents_helper.h

+// 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.
+
+#ifndef APPS_APP_WEB_CONTENTS_HELPER_H_
+#define APPS_APP_WEB_CONTENTS_HELPER_H_
+
+#include "content/public/common/console_message_level.h"
+#include "content/public/common/media_stream_request.h"
+
+namespace blink {
+class WebGestureEvent;
+}
+
+namespace content {
+class BrowserContext;
+struct OpenURLParams;
+class WebContents;
+}
+
+namespace extensions {
+class Extension;
+}
+
+namespace apps {
+
+class AppDelegate;
+
+// Provides common functionality for apps and launcher pages to respond to
+// messages from a WebContents.
+class AppWebContentsHelper {
+ public:
+  AppWebContentsHelper(content::BrowserContext* browser_context,
+                       const std::string& extension_id,
+                       content::WebContents* web_contents,
+                       AppDelegate* app_delegate);
+
+  // Returns true if the given |event| should not be handled by the renderer.
+  static bool ShouldSuppressGestureEvent(const blink::WebGestureEvent& event);
+
+  // Opens a new URL inside the passed in WebContents. See WebContentsDelegate.
+  content::WebContents* OpenURLFromTab(
+      const content::OpenURLParams& params) const;
+
+  // Requests to lock the mouse. See WebContentsDelegate.
+  void RequestToLockMouse() const;
+
+  // Asks permission to use the camera and/or microphone. See
+  // WebContentsDelegate.
+  void RequestMediaAccessPermission(
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) const;
+
+  const extensions::Extension* GetExtension() const;

[benwells, 2014/07/31 06:20:29]

Why is this and browser_context() public?

[Matt Giuca, 2014/08/01 04:49:29]

Not sure, I assume historical reasons!

Deleted browser_context(), made GetExtension private.

+
+  const content::BrowserContext* browser_context() const {
+    return browser_context_;
+  }
+
+ private:
+  // Helper method to add a message to the renderer's DevTools console.
+  void AddMessageToDevToolsConsole(content::ConsoleMessageLevel level,
+                                   const std::string& message) const;
+
+  // The browser context with which this window is associated.
+  // AppWindowWebContentsDelegate does not own this object.
+  content::BrowserContext* browser_context_;
+
+  const std::string extension_id_;
+
+  content::WebContents* web_contents_;
+
+  AppDelegate* app_delegate_;

[benwells, 2014/07/31 06:20:29]

DISALLOW_COPY_AND_ASSIGN

[Matt Giuca, 2014/08/01 04:49:29]

Done.

+};
+
+}  // namespace apps
+
+#endif  // APPS_APP_WEB_CONTENTS_HELPER_H_