Implemented injected message loops for PipelineImpl.

For now both the player and WebMediaPlayerImpl create a thread and inject its message loop into the pipeline.  The end result is more-or-less the same as what we have today, but we could end up moving the pipeline onto the render thread.

BUG=16008
TEST=layout tests, media_unittests should pass

Review URL: http://codereview.chromium.org/155338

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20417 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 8 insertions, 2 deletions

diff --git a/media/player/movie.cc b/media/player/movie.cc
index e37a497..2bb4001 100644
--- a/media/player/movie.cc
+++ b/media/player/movie.cc
@@ -79,7 +79,9 @@ bool Movie::Open(const wchar_t* url, WtlVideoRenderer* video_renderer) {
   factories->AddFactory(
       new media::InstanceFilterFactory<WtlVideoRenderer>(video_renderer));
 
-  pipeline_.reset(new PipelineImpl());
+  thread_.reset(new base::Thread("PipelineThread"));
+  thread_->Start();
+  pipeline_.reset(new PipelineImpl(thread_->message_loop()));
 
   // Create and start our pipeline.
   pipeline_->Start(factories.get(), WideToUTF8(std::wstring(url)), NULL);
@@ -194,8 +196,10 @@ bool Movie::GetOpenMpEnable() {
 // Teardown.
 void Movie::Close() {
   if (pipeline_.get()) {
-    pipeline_->Stop();
+    pipeline_->Stop(NULL);
+    thread_->Stop();
     pipeline_.reset();
+    thread_.reset();
   }
 }
 
diff --git a/media/player/movie.h b/media/player/movie.h
index fdaa2b5..eb23822 100644
--- a/media/player/movie.h
+++ b/media/player/movie.h
@@ -11,6 +11,7 @@
 
 #include "base/scoped_ptr.h"
 #include "base/singleton.h"
+#include "base/thread.h"
 
 class WtlVideoRenderer;
 
@@ -90,6 +91,7 @@ class Movie : public Singleton<Movie> {
   virtual ~Movie();
 
   scoped_ptr<PipelineImpl> pipeline_;
+  scoped_ptr<base::Thread> thread_;
 
   bool enable_audio_;
   bool enable_swscaler_;