[Chromoting] Implement new APIs in DesktopCapturer

remoting/host/chromeos/aura_desktop_capturer.cc

 // Copyright 2014 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 "remoting/host/chromeos/aura_desktop_capturer.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "remoting/host/chromeos/skia_bitmap_desktop_frame.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
 
 #if defined(USE_ASH)
 #include "ash/shell.h"
 #endif
 
 namespace remoting {
 
 AuraDesktopCapturer::AuraDesktopCapturer()
-    : callback_(nullptr), desktop_window_(nullptr), weak_factory_(this) {
-}
+    : callback_(nullptr), desktop_window_(nullptr), weak_factory_(this) {}
 
-AuraDesktopCapturer::~AuraDesktopCapturer() {
-}
+AuraDesktopCapturer::~AuraDesktopCapturer() {}
 
 void AuraDesktopCapturer::Start(webrtc::DesktopCapturer::Callback* callback) {
 #if defined(USE_ASH)
   if (ash::Shell::HasInstance()) {
     // TODO(kelvinp): Use ash::Shell::GetAllRootWindows() when multiple monitor
     // support is implemented.
     desktop_window_ = ash::Shell::GetPrimaryRootWindow();
     DCHECK(desktop_window_) << "Failed to retrieve the Aura Shell root window";
   }
 #endif
@@ skipping 34 matching lines @@
       frame->size().width(), frame->size().height());
 
   // TODO(kelvinp): Set Frame DPI according to the screen resolution.
   // See cc::Layer::contents_scale_(x|y)() and frame->set_depi().
   frame->mutable_updated_region()->SetRect(rect);
 
   callback_->OnCaptureResult(DesktopCapturer::Result::SUCCESS,
                              std::move(frame));
 }
 
+bool AuraDesktopCapturer::GetSourceList(SourceList* sources) {
+  // TODO(zijiehe): Implement screen enumeration.
+  sources->push_back({0});
+  return true;
+}
+
+bool AuraDesktopCapturer::SelectSource(SourceId id) {
+  // TODO(zijiehe): Implement screen selection.
+  return true;
+}
+
 }  // namespace remoting