[Media Router] Force DEFAULT cast mode when starting presentations from content.

chrome/browser/media/router/create_presentation_connection_request.h

 // Copyright 2015 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 CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_CONNECTION_REQUEST_H_
 #define CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_CONNECTION_REQUEST_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 14 matching lines @@
 }  // namespace url
 
 namespace media_router {
 
 class RouteRequestResult;
 
 // Holds parameters for creating a presentation.  A request object is created by
 // presentation_service_delegate_impl, which is then passed to and owned by the
 // MediaRouterUI. |success_cb| will be invoked when create-session succeeds, or
 // |error_cb| will be invoked when create-session fails or the UI closes.
+// TODO(mfoltz): Combine this with PresentationRequest as it's largely
+// redundant.
 class CreatePresentationConnectionRequest {
  public:
   using PresentationConnectionCallback =
       base::Callback<void(const content::PresentationInfo&, const MediaRoute&)>;
   using PresentationConnectionErrorCallback =
       content::PresentationConnectionErrorCallback;
   // |presentation_url|: The presentation URL of the request. Must be a valid
   //                     URL.
   // |frame_origin|: The origin of the frame that initiated the presentation
   // request.
+  // |is_top_level_frame|: True if the request is from a top level frame.

[takumif, 2017/05/16 21:51:28]

No longer necessary?

[mark a. foltz, 2017/05/16 22:02:11]

Removed.

   // |success_cb|: Callback to invoke when the request succeeds. Must be valid.
-  // |erorr_cb|: Callback to invoke when the request fails. Must be valid.
+  // |error_cb|: Callback to invoke when the request fails. Must be valid.
   CreatePresentationConnectionRequest(
       const RenderFrameHostId& render_frame_host_id,
       const std::vector<GURL>& presentation_urls,
       const url::Origin& frame_origin,
       const PresentationConnectionCallback& success_cb,
       const PresentationConnectionErrorCallback& error_cb);
   ~CreatePresentationConnectionRequest();
 
   const PresentationRequest& presentation_request() const {
     return presentation_request_;
@@ skipping 17 matching lines @@
   PresentationConnectionCallback success_cb_;
   PresentationConnectionErrorCallback error_cb_;
   bool cb_invoked_;
 
   DISALLOW_COPY_AND_ASSIGN(CreatePresentationConnectionRequest);
 };
 
 }  // namespace media_router
 
 #endif  // CHROME_BROWSER_MEDIA_ROUTER_CREATE_PRESENTATION_CONNECTION_REQUEST_H_