Add a path for content/ to open and control a Bluetooth chooser dialog.

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
@@ skipping 1916 matching lines @@
 
 const image_downloader::ImageDownloaderPtr&
 RenderFrameHostImpl::GetMojoImageDownloader() {
   if (!mojo_image_downloader_.get() && GetServiceRegistry()) {
     GetServiceRegistry()->ConnectToRemoteService(
         mojo::GetProxy(&mojo_image_downloader_));
   }
   return mojo_image_downloader_;
 }
 
+scoped_ptr<BluetoothChooser> RenderFrameHostImpl::RunBluetoothChooser(
+    BluetoothChooser::Observer* observer,
+    int chooser_id,
+    const GURL& origin) {
+  if (delegate_) {

[ortuno, 2015/08/17 21:12:59]

Why do you have to check if the delegate is there? Also what about:

return delegate_ ?
  delegate_->RunBluetoothChooser(observer, chooser_id, origin) : nullptr;

[Jeffrey Yasskin, 2015/08/17 23:38:16]

Looking at other uses of delegate_, I don't. Thanks!

+    return delegate_->RunBluetoothChooser(observer, chooser_id, origin);
+  }
+  return nullptr;
+}
+
 bool RenderFrameHostImpl::IsSameSiteInstance(
     RenderFrameHostImpl* other_render_frame_host) {
   // As a sanity check, make sure the frame belongs to the same BrowserContext.
   CHECK_EQ(GetSiteInstance()->GetBrowserContext(),
            other_render_frame_host->GetSiteInstance()->GetBrowserContext());
   return GetSiteInstance() == other_render_frame_host->GetSiteInstance();
 }
 
 void RenderFrameHostImpl::SetAccessibilityMode(AccessibilityMode mode) {
   Send(new FrameMsg_SetAccessibilityMode(routing_id_, mode));
@@ skipping 268 matching lines @@
             BrowserPluginInstanceIDToAXTreeID(value)));
         break;
       case AX_CONTENT_INT_ATTRIBUTE_LAST:
         NOTREACHED();
         break;
     }
   }
 }
 
 }  // namespace content