Refactor Pipeline & PipelineImpl so WebMediaPlayerImpl references a Pipeline instead of PipelineImpl

BUG=54110
TEST=PipelineImplTest

Review URL: http://codereview.chromium.org/4664005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65817 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 0 deletions

diff --git a/media/base/pipeline.h b/media/base/pipeline.h
index ab08cc4..5b234af 100644
--- a/media/base/pipeline.h
+++ b/media/base/pipeline.h
@@ -48,6 +48,15 @@ typedef Callback0::Type PipelineCallback;
 
 class Pipeline : public base::RefCountedThreadSafe<Pipeline> {
  public:
+  // Initializes pipeline. Pipeline takes ownership of all callbacks passed
+  // into this method.
+  // |ended_callback| will be executed when the media reaches the end.
+  // |error_callback_| will be executed upon an error in the pipeline.
+  // |network_callback_| will be executed when there's a network event.
+  virtual void Init(PipelineCallback* ended_callback,
+                    PipelineCallback* error_callback,
+                    PipelineCallback* network_callback) = 0;
+
   // Build a pipeline to render the given URL using the given filter collection
   // to construct a filter chain.  Returns true if successful, false otherwise
   // (i.e., pipeline already started).  Note that a return value of true
@@ -93,6 +102,9 @@ class Pipeline : public base::RefCountedThreadSafe<Pipeline> {
   // for a pipeline to be started but not initialized (i.e., an error occurred).
   virtual bool IsInitialized() const = 0;
 
+  // Returns true if there has been network activity.
+  virtual bool IsNetworkActive() const = 0;
+
   // If the |major_mime_type| exists in the pipeline and is being rendered, this
   // method will return true.  Types are defined in media/base/media_foramt.h.
   // For example, to determine if a pipeline contains video: