[Chromoting] Use device::PowerSaveBlocker to block screen saver

remoting/host/desktop_capturer_proxy.h

Index: remoting/host/desktop_capturer_proxy.h
diff --git a/remoting/host/desktop_capturer_proxy.h b/remoting/host/desktop_capturer_proxy.h
index d92c31c8ca5091d08b762b2c631cc7f3adb55f82..e702d769546680628f04b77417f9b3096a44cb43 100644
--- a/remoting/host/desktop_capturer_proxy.h
+++ b/remoting/host/desktop_capturer_proxy.h
@@ -11,9 +11,11 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
+#include "device/power_save_blocker/power_save_blocker.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
 
 namespace base {
+class SequencedTaskRunner;
 class SingleThreadTaskRunner;
 }  // namespace base
 
@@ -33,6 +35,8 @@ class DesktopCapturerProxy : public webrtc::DesktopCapturer {
  public:
   DesktopCapturerProxy(
       scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
+      scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> blocking_task_runner,
       const webrtc::DesktopCaptureOptions& options);
   ~DesktopCapturerProxy() override;
 
@@ -54,6 +58,8 @@ class DesktopCapturerProxy : public webrtc::DesktopCapturer {
   scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_;
   webrtc::DesktopCapturer::Callback* callback_;
 
+  device::PowerSaveBlocker power_save_blocker_;

[Sergey Ulanov, 2016/06/22 19:05:37]

Power-blocking isn't related to screen capturing, so I don't think it belongs
here. Put it in ClientSession?

[Hzj_jie, 2016/06/24 19:14:29]

Done.

+
   base::WeakPtrFactory<DesktopCapturerProxy> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopCapturerProxy);