Refactor PipelineImpl to use CompositeFilter to manage Filter state transitions.

BUG=54110
TEST=media_unittests CompositeFilterTest.*

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=70267

Review URL: http://codereview.chromium.org/5744002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@70527 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 25 insertions, 2 deletions

diff --git a/media/base/mock_filters.cc b/media/base/mock_filters.cc
index 3347016..39ed730 100644
--- a/media/base/mock_filters.cc
+++ b/media/base/mock_filters.cc
@@ -6,12 +6,16 @@
 
 namespace media {
 
-MockFilterCallback::MockFilterCallback() {}
+MockFilterCallback::MockFilterCallback() : run_destroy_callback_(true) {}
+
+MockFilterCallback::MockFilterCallback(bool run_destroy_callback) :
+    run_destroy_callback_(run_destroy_callback) {
+}
 
 MockFilterCallback::~MockFilterCallback() {}
 
 FilterCallback* MockFilterCallback::NewCallback() {
-  return new CallbackImpl(this);
+  return new CallbackImpl(this, run_destroy_callback_);
 }
 
 MockDataSource::MockDataSource() {}
@@ -82,4 +86,23 @@ void RunStopFilterCallback(FilterCallback* callback) {
   delete callback;
 }
 
+MockFilter::MockFilter() :
+    requires_message_loop_(false) {
+}
+
+MockFilter::MockFilter(bool requires_message_loop) :
+    requires_message_loop_(requires_message_loop) {
+}
+
+MockFilter::~MockFilter() {}
+
+bool MockFilter::requires_message_loop() const {
+  return requires_message_loop_;
+}
+
+const char* MockFilter::message_loop_name() const {
+  return "MockFilter";
+}
+
+
 }  // namespace media