Use IpcVideoFrameCapturer on network thread instead of capture thread.

Previously IpcVideoFrameCapturer was called on the capturer thread,
while all IPC messages are sent and received on the network thread. Now
DesktopEnvironment implementations are responsible for creation of
DesktopCapturerProxy and MouseCursorMonitorProxy if necessary. This
allows to avoid capture thread on windows in the network process.

Also cleaned up unnecessary references to various task runners from
ChromotingHost and ClientSession.

BUG=458437

Review URL: https://codereview.chromium.org/1673723002

Cr-Commit-Position: refs/heads/master@{#375412}

1 files changed, 2 insertions, 12 deletions

diff --git a/remoting/host/chromoting_host_unittest.cc b/remoting/host/chromoting_host_unittest.cc
index f033eee..1b94ed5 100644
--- a/remoting/host/chromoting_host_unittest.cc
+++ b/remoting/host/chromoting_host_unittest.cc
@@ -67,11 +67,7 @@ class ChromotingHostTest : public testing::Test {
         desktop_environment_factory_.get(), make_scoped_ptr(session_manager_),
         protocol::TransportContext::ForTests(protocol::TransportRole::SERVER),
         task_runner_,    // Audio
-        task_runner_,    // Input
-        task_runner_,    // Video capture
-        task_runner_,    // Video encode
-        task_runner_,    // Network
-        task_runner_));  // UI
+        task_runner_));  // Video encode
     host_->AddStatusObserver(&host_status_observer_);
 
     xmpp_login_ = "host@domain";
@@ -129,13 +125,7 @@ class ChromotingHostTest : public testing::Test {
         (connection_index == 0) ? owned_connection1_ : owned_connection2_);
     protocol::ConnectionToClient* connection_ptr = connection.get();
     scoped_ptr<ClientSession> client(new ClientSession(
-        host_.get(),
-        task_runner_,  // Audio
-        task_runner_,  // Input
-        task_runner_,  // Video capture
-        task_runner_,  // Video encode
-        task_runner_,  // Network
-        task_runner_,  // UI
+        host_.get(), task_runner_ /* audio_task_runner */,
         std::move(connection), desktop_environment_factory_.get(),
         base::TimeDelta(), nullptr, std::vector<HostExtension*>()));
     ClientSession* client_ptr = client.get();