Android: not to pause screen capture when Chrome is put to background

content/renderer/media/video_capture_impl_manager.cc

Index: content/renderer/media/video_capture_impl_manager.cc
diff --git a/content/renderer/media/video_capture_impl_manager.cc b/content/renderer/media/video_capture_impl_manager.cc
index 678dfef28cfeb12101ce5e0ece224bb17656fabf..4d64fc8e9c9b7dc305dbbbd75d8b25a1a26a00e7 100644
--- a/content/renderer/media/video_capture_impl_manager.cc
+++ b/content/renderer/media/video_capture_impl_manager.cc
@@ -46,7 +46,6 @@ struct VideoCaptureImplManager::DeviceEntry {
 
   // This is set to true if this device is being suspended, via
   // VideoCaptureImplManager::Suspend().
-  // See also: VideoCaptureImplManager::is_suspending_all_.
   bool is_individually_suspended;
 
   DeviceEntry()
@@ -59,7 +58,6 @@ struct VideoCaptureImplManager::DeviceEntry {
 VideoCaptureImplManager::VideoCaptureImplManager()
     : next_client_id_(0),
       render_main_task_runner_(base::ThreadTaskRunnerHandle::Get()),
-      is_suspending_all_(false),
       weak_factory_(this) {}
 
 VideoCaptureImplManager::~VideoCaptureImplManager() {
@@ -151,8 +149,6 @@ void VideoCaptureImplManager::Suspend(media::VideoCaptureSessionId id) {
   if (it->client_count > 1)
     return;  // Punt when there is >1 client (see comments in UseDevice()).
   it->is_individually_suspended = true;
-  if (is_suspending_all_)
-    return;  // Device should already be suspended.
   ChildProcess::current()->io_task_runner()->PostTask(
       FROM_HERE, base::Bind(&VideoCaptureImpl::SuspendCapture,
                             base::Unretained(it->impl.get()), true));
@@ -167,8 +163,6 @@ void VideoCaptureImplManager::Resume(media::VideoCaptureSessionId id) {
   if (!it->is_individually_suspended)
     return;  // Device was not individually suspended.
   it->is_individually_suspended = false;
-  if (is_suspending_all_)
-    return;  // Device must remain suspended until all are resumed.
   ChildProcess::current()->io_task_runner()->PostTask(
       FROM_HERE, base::Bind(&VideoCaptureImpl::SuspendCapture,
                             base::Unretained(it->impl.get()), false));
@@ -234,18 +228,4 @@ void VideoCaptureImplManager::UnrefDevice(
   devices_.erase(it);
 }
 
-void VideoCaptureImplManager::SuspendDevices(bool suspend) {
-  DCHECK(render_main_task_runner_->BelongsToCurrentThread());
-  if (is_suspending_all_ == suspend)
-    return;
-  is_suspending_all_ = suspend;
-  for (auto& entry : devices_) {
-    if (entry.is_individually_suspended)
-      continue;  // Either: 1) Already suspended; or 2) Should not be resumed.
-    ChildProcess::current()->io_task_runner()->PostTask(
-        FROM_HERE, base::Bind(&VideoCaptureImpl::SuspendCapture,
-                              base::Unretained(entry.impl.get()), suspend));
-  }
-}
-
 }  // namespace content