Move media library AutoTaskRunner to base and rename ScopedTaskRunner.

remoting/host/client_session.cc

Index: remoting/host/client_session.cc
diff --git a/remoting/host/client_session.cc b/remoting/host/client_session.cc
index 297ee001eb43a16e4890d9e410ff8fd74ee2c2cc..afe1839a86881c91968f3e471d729ae09bf85ab8 100644
--- a/remoting/host/client_session.cc
+++ b/remoting/host/client_session.cc
@@ -5,7 +5,6 @@
 #include "remoting/host/client_session.h"
 
 #include "base/task.h"
-#include "media/base/callback.h"
 #include "remoting/host/user_authenticator.h"
 #include "remoting/proto/auth.pb.h"
 
@@ -28,7 +27,7 @@ ClientSession::~ClientSession() {
 
 void ClientSession::SuggestResolution(
     const protocol::SuggestResolutionRequest* msg, Task* done) {
-  media::AutoTaskRunner done_runner(done);
+  ScopedTaskRunner done_runner(done);
 
   if (!authenticated_) {
     LOG(WARNING) << "Invalid control message received "
@@ -41,7 +40,7 @@ void ClientSession::BeginSessionRequest(
     const protocol::LocalLoginCredentials* credentials, Task* done) {
   DCHECK(event_handler_);
 
-  media::AutoTaskRunner done_runner(done);
+  ScopedTaskRunner done_runner(done);
 
   bool success = false;
   switch (credentials->type()) {
@@ -70,19 +69,17 @@ void ClientSession::OnAuthorizationComplete(bool success) {
 
 void ClientSession::InjectKeyEvent(const protocol::KeyEvent* event,
                                    Task* done) {
-  media::AutoTaskRunner done_runner(done);
+  ScopedTaskRunner done_runner(done);
   if (authenticated_) {
-    done_runner.release();
-    input_stub_->InjectKeyEvent(event, done);
+    input_stub_->InjectKeyEvent(event, done_runner.release());
   }
 }
 
 void ClientSession::InjectMouseEvent(const protocol::MouseEvent* event,
                                      Task* done) {
-  media::AutoTaskRunner done_runner(done);
+  ScopedTaskRunner done_runner(done);
   if (authenticated_) {
-    done_runner.release();
-    input_stub_->InjectMouseEvent(event, done);
+    input_stub_->InjectMouseEvent(event, done_runner.release());
   }
 }