Replace MessageLoopProxy usage with ThreadTaskRunnerHandle in content/browser/media module.

MessageLoopProxy is deprecated.
This basically does a search and replace:

MessageLoopProxy::current() -> ThreadTaskRunnerHandle::Get().

BUG=391045

Review URL: https://codereview.chromium.org/1112333002

Cr-Commit-Position: refs/heads/master@{#328285}

4 files changed, 16 insertions, 14 deletions

diff --git a/content/browser/media/android/media_drm_credential_manager.cc b/content/browser/media/android/media_drm_credential_manager.cc
index e419b04..50d6653 100644
--- a/content/browser/media/android/media_drm_credential_manager.cc
+++ b/content/browser/media/android/media_drm_credential_manager.cc
@@ -9,7 +9,8 @@
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "jni/MediaDrmCredentialManager_jni.h"
 #include "media/base/android/media_drm_bridge.h"
 #include "url/gurl.h"
@@ -101,7 +102,7 @@ bool MediaDrmCredentialManager::ResetCredentialsInternal(
 
   if (!media_drm_bridge_->SetSecurityLevel(security_level)) {
     // No need to reset credentials for unsupported |security_level|.
-    base::MessageLoopProxy::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(reset_credentials_cb, true));
     return true;
   }
diff --git a/content/browser/media/capture/web_contents_audio_input_stream_unittest.cc b/content/browser/media/capture/web_contents_audio_input_stream_unittest.cc
index c107808..ffe8b4b 100644
--- a/content/browser/media/capture/web_contents_audio_input_stream_unittest.cc
+++ b/content/browser/media/capture/web_contents_audio_input_stream_unittest.cc
@@ -9,6 +9,7 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "content/browser/media/capture/audio_mirroring_manager.h"
@@ -86,7 +87,7 @@ class MockWebContentsTracker : public WebContentsTracker {
 class MockVirtualAudioInputStream : public VirtualAudioInputStream {
  public:
   explicit MockVirtualAudioInputStream(
-      const scoped_refptr<base::MessageLoopProxy>& worker_loop)
+      const scoped_refptr<base::SingleThreadTaskRunner>& worker_loop)
       : VirtualAudioInputStream(TestAudioParameters(), worker_loop,
                                 VirtualAudioInputStream::AfterCloseCallback()),
         real_(TestAudioParameters(), worker_loop,
diff --git a/content/browser/media/capture/web_contents_tracker.cc b/content/browser/media/capture/web_contents_tracker.cc
index 6810ac0..a9e161f 100644
--- a/content/browser/media/capture/web_contents_tracker.cc
+++ b/content/browser/media/capture/web_contents_tracker.cc
@@ -4,7 +4,7 @@
 
 #include "content/browser/media/capture/web_contents_tracker.h"
 
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/thread_task_runner_handle.h"
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/public/browser/browser_thread.h"
@@ -24,10 +24,10 @@ WebContentsTracker::~WebContentsTracker() {
 
 void WebContentsTracker::Start(int render_process_id, int main_render_frame_id,
                                const ChangeCallback& callback) {
-  DCHECK(!message_loop_.get() || message_loop_->BelongsToCurrentThread());
+  DCHECK(!task_runner_.get() || task_runner_->BelongsToCurrentThread());
 
-  message_loop_ = base::MessageLoopProxy::current();
-  DCHECK(message_loop_.get());
+  task_runner_ = base::ThreadTaskRunnerHandle::Get();
+  DCHECK(task_runner_.get());
   callback_ = callback;
 
   if (BrowserThread::CurrentlyOn(BrowserThread::UI)) {
@@ -41,7 +41,7 @@ void WebContentsTracker::Start(int render_process_id, int main_render_frame_id,
 }
 
 void WebContentsTracker::Stop() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   callback_.Reset();
 
@@ -88,17 +88,17 @@ void WebContentsTracker::OnPossibleTargetChange(bool force_callback_run) {
            << " to RenderWidgetHost@" << rwh;
   last_target_ = rwh;
 
-  if (message_loop_->BelongsToCurrentThread()) {
+  if (task_runner_->BelongsToCurrentThread()) {
     MaybeDoCallback(rwh);
   } else {
-    message_loop_->PostTask(
+    task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&WebContentsTracker::MaybeDoCallback, this, rwh));
   }
 }
 
 void WebContentsTracker::MaybeDoCallback(RenderWidgetHost* rwh) {
-  DCHECK(message_loop_->BelongsToCurrentThread());
+  DCHECK(task_runner_->BelongsToCurrentThread());
 
   if (!callback_.is_null())
     callback_.Run(rwh);
diff --git a/content/browser/media/capture/web_contents_tracker.h b/content/browser/media/capture/web_contents_tracker.h
index f124eaa..613c971 100644
--- a/content/browser/media/capture/web_contents_tracker.h
+++ b/content/browser/media/capture/web_contents_tracker.h
@@ -22,7 +22,7 @@
 #include "content/public/browser/web_contents_observer.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 namespace content {
@@ -99,8 +99,8 @@ class CONTENT_EXPORT WebContentsTracker
   // RenderWidgetHosts.
   const bool track_fullscreen_rwh_;
 
-  // MessageLoop corresponding to the thread that called Start().
-  scoped_refptr<base::MessageLoopProxy> message_loop_;
+  // TaskRunner corresponding to the thread that called Start().
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // Callback to run when the target RenderWidgetHost has changed.
   ChangeCallback callback_;