Add InspectableWebContents

This class can be used to create a content::WebContents that can be inspected
by the Chrome Dev Tools. This requires embedding applications to copy
content_shell.pak into their resource bundle.

Right now the dev tools are always docked to the bottom of the view; we don't
yet support undocking or changing the docked side.

Fixes #1.

brightray/browser/devtools_delegate.h

@@ -0,0 +1,28 @@
+// 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-CHROMIUM file.
+
+#ifndef BRIGHTRAY_BROWSER_DEVTOOLS_DELEGATE_H_
+#define BRIGHTRAY_BROWSER_DEVTOOLS_DELEGATE_H_
+
+#include "content/public/browser/devtools_http_handler_delegate.h"
+
+namespace brightray {
+
+class DevToolsDelegate : public content::DevToolsHttpHandlerDelegate {
+public:
+  DevToolsDelegate();
+  ~DevToolsDelegate();
+
+private:
+  virtual std::string GetDiscoveryPageHTML() OVERRIDE;
+  virtual bool BundlesFrontendResources() OVERRIDE;
+  virtual base::FilePath GetDebugFrontendDir() OVERRIDE;
+  virtual std::string GetPageThumbnailData(const GURL&) OVERRIDE;
+  virtual content::RenderViewHost* CreateNewTarget() OVERRIDE;
+  virtual TargetType GetTargetType(content::RenderViewHost*) OVERRIDE;
+};
+
+}
+
+#endif