IPC messages and changes to ResourceLoaderBridge to support resource loading for media

webkit/glue/resource_loader_bridge.h

Index: webkit/glue/resource_loader_bridge.h
diff --git a/webkit/glue/resource_loader_bridge.h b/webkit/glue/resource_loader_bridge.h
index 8d32f0cc62b5f0e1e5d86164fe429c394c3a63c3..bd5ad427892afd777902312876a3972310667306 100644
--- a/webkit/glue/resource_loader_bridge.h
+++ b/webkit/glue/resource_loader_bridge.h
@@ -91,6 +91,13 @@ class ResourceLoaderBridge {
    public:
     virtual ~Peer() {}
 
+    // Called as download progress is made.
+    // note: only for requests with LOAD_ENABLE_DOWNLOAD_FILE set and the
+    // resource is downloaded to a standalone file and the file handle to it is
+    // passed in ResponseInfo during OnReceivedResponse. Note that size may be
+    // unknown and |size| will be kuint64max in that case.
+    virtual void OnDownloadProgress(uint64 position, uint64 size) {}
+
     // Called as upload progress is made.
     // note: only for requests with LOAD_ENABLE_UPLOAD_PROGRESS set
     virtual void OnUploadProgress(uint64 position, uint64 size) = 0;
@@ -105,7 +112,7 @@ class ResourceLoaderBridge {
     virtual void OnReceivedResponse(const ResponseInfo& info,
                                     bool content_filtered) = 0;
 
-    // Called when a chunk of response data is available.  This method may
+    // Called when a chunk of response data is available. This method may
     // be called multiple times or not at all if an error occurs.
     virtual void OnReceivedData(const char* data, int len) = 0;