[Presentation API] Add support to content/ for multiple URLs per PresentationRequest.

content/public/browser/presentation_service_delegate.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 CONTENT_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 89 matching lines @@
       PresentationScreenAvailabilityListener* listener) = 0;
 
   // Resets the presentation state for the frame given by |render_process_id|
   // and |render_frame_id|.
   // This unregisters all listeners associated with the given frame, and clears
   // the default presentation URL and ID set for the frame.
   virtual void Reset(
       int render_process_id,
       int render_frame_id) = 0;
 
-  // Sets the default presentation URL for frame given by |render_process_id|
+  // Sets the default presentation URLs for frame given by |render_process_id|
   // and |render_frame_id|. When the default presentation is started on this
   // frame, |callback| will be invoked with the corresponding
   // PresentationSessionInfo object.
-  // If |default_presentation_url| is empty, the default presentation URL will
+  // If |default_presentation_urls| is empty, the default presentation URLs will
   // be cleared and the previously registered callback (if any) will be removed.
-  virtual void SetDefaultPresentationUrl(
+  virtual void SetDefaultPresentationUrls(
       int render_process_id,
       int render_frame_id,
-      const std::string& default_presentation_url,
+      const std::vector<std::string>& default_presentation_urls,
       const PresentationSessionStartedCallback& callback) = 0;
 
   // Starts a new presentation session. The presentation id of the session will
   // be the default presentation ID if any or a generated one otherwise.
   // Typically, the embedder will allow the user to select a screen to show
-  // |presentation_url|.
+  // one of the |presentation_urls|.
   // |render_process_id|, |render_frame_id|: ID of originating frame.
-  // |presentation_url|: URL of the presentation.
+  // |presentation_urls|: Possible URLs for the presentation.
   // |success_cb|: Invoked with session info, if presentation session started
   // successfully.
   // |error_cb|: Invoked with error reason, if presentation session did not
   // start.
   virtual void StartSession(
       int render_process_id,
       int render_frame_id,
-      const std::string& presentation_url,
+      const std::vector<std::string>& presentation_urls,
       const PresentationSessionStartedCallback& success_cb,
       const PresentationSessionErrorCallback& error_cb) = 0;
 
   // Joins an existing presentation session. Unlike StartSession(), this
   // does not bring a screen list UI.
   // |render_process_id|, |render_frame_id|: ID for originating frame.
-  // |presentation_url|: URL of the presentation.
+  // |presentation_urls|: Possible URLs of the presentation.
   // |presentation_id|: The ID of the presentation to join.
   // |success_cb|: Invoked with session info, if presentation session joined
   // successfully.
   // |error_cb|: Invoked with error reason, if joining failed.
   virtual void JoinSession(
       int render_process_id,
       int render_frame_id,
-      const std::string& presentation_url,
+      const std::vector<std::string>& presentation_urls,
       const std::string& presentation_id,
       const PresentationSessionStartedCallback& success_cb,
       const PresentationSessionErrorCallback& error_cb) = 0;
 
   // Closes an existing presentation connection.
   // |render_process_id|, |render_frame_id|: ID for originating frame.
   // |presentation_id|: The ID of the presentation to close.
   virtual void CloseConnection(int render_process_id,
                                int render_frame_id,
                                const std::string& presentation_id) = 0;
@@ skipping 37 matching lines @@
   virtual void ListenForConnectionStateChange(
       int render_process_id,
       int render_frame_id,
       const PresentationSessionInfo& connection,
       const PresentationConnectionStateChangedCallback& state_changed_cb) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_PRESENTATION_SERVICE_DELEGATE_H_