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

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index a25fc594cd3861f74bc23bc863bab09ffe8255a5..f2a8b2e4dc04da78dfa527669cce84bbb811f980 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1934,6 +1934,16 @@ RenderFrameHostImpl::GetMojoImageDownloader() {
   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.