Move media library AutoTaskRunner to base and rename ScopedTaskRunner.

remoting/host/event_executor_linux.cc

Index: remoting/host/event_executor_linux.cc
diff --git a/remoting/host/event_executor_linux.cc b/remoting/host/event_executor_linux.cc
index 2b632c9522e038fe350f60bf71d40bfcea6782c7..e01aede0c63792f47d0375b674819f49b897d41c 100644
--- a/remoting/host/event_executor_linux.cc
+++ b/remoting/host/event_executor_linux.cc
@@ -14,7 +14,6 @@
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/task.h"
-#include "media/base/callback.h"
 #include "remoting/proto/internal.pb.h"
 
 namespace remoting {
@@ -278,13 +277,13 @@ bool EventExecutorLinux::Init() {
 }
 
 void EventExecutorLinux::InjectKeyEvent(const KeyEvent* event, Task* done) {
-  media::AutoTaskRunner done_runner(done);
+  base::ScopedTaskRunner done_runner(done);
 
   if (MessageLoop::current() != message_loop_) {
     message_loop_->PostTask(
         FROM_HERE,
         NewRunnableMethod(this, &EventExecutorLinux::InjectKeyEvent,
-                          event, done_runner.release()));
+                          event, done_runner.Release()));
     return;
   }
 
@@ -313,13 +312,13 @@ void EventExecutorLinux::InjectKeyEvent(const KeyEvent* event, Task* done) {
 
 void EventExecutorLinux::InjectMouseEvent(const MouseEvent* event,
                                           Task* done) {
-  media::AutoTaskRunner done_runner(done);
+  base::ScopedTaskRunner done_runner(done);
 
   if (MessageLoop::current() != message_loop_) {
     message_loop_->PostTask(
         FROM_HERE,
         NewRunnableMethod(this, &EventExecutorLinux::InjectMouseEvent,
-                          event, done_runner.release()));
+                          event, done_runner.Release()));
     return;
   }