Stub for WebRTCDeviceProvider

content/renderer/web_ui_extension.cc

 // Copyright 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.
 
 #include "content/renderer/web_ui_extension.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/bindings_policy.h"
@@ skipping 25 matching lines @@
 
   RenderView* render_view = RenderView::FromWebView(frame->view());
   if (!render_view)
     return false;
 
   GURL frame_url = frame->document().url();
 
   bool webui_enabled =
       (render_view->GetEnabledBindings() & BINDINGS_POLICY_WEB_UI) &&
       (frame_url.SchemeIs(kChromeUIScheme) ||
+       frame_url.SchemeIs(kChromeDevToolsScheme) ||

[Tom Sepez, 2014/11/21 18:51:38]

No.  This violates the principle of least privilege, granting to all of devtools
privileges that are beyond what is needed.  You'll need to find another
approach.

[SeRya, 2014/11/24 11:10:06]

As we discussed, this change does the following thing: It lets 'chrome.send'
pass to the browser process. It only works for 'chrome-devtools://brindge/...'
because 'chrome-devtools://devtools' disables by removing the
BINDINGS_POLICY_WEB_UI flag (because devtools frontend used own bindings).

Than sends may only be handled in:
1. components/devtools_bridge/client/web_client.cc (this WebUIMessageHandler
added deliberately)
2. content/browser/webui/generic_handler.cc (because WebContents adds it).

        frame_url.SchemeIs(url::kDataScheme));
 
   if (!webui_enabled)
     return false;
 
   *frame_ptr = frame;
   *render_view_ptr = render_view;
   return true;
 }
 
@@ skipping 71 matching lines @@
 std::string WebUIExtension::GetVariableValue(const std::string& name) {
   blink::WebFrame* frame;
   RenderView* render_view;
   if (!ShouldRespondToRequest(&frame, &render_view))
     return std::string();
 
   return WebUIExtensionData::Get(render_view)->GetValue(name);
 }
 
 }  // namespace content