Plumbing for providing a cache thread MessageLoop to the DiskCache backend....

webkit/appcache/appcache_thread.h

Index: webkit/appcache/appcache_thread.h
===================================================================
--- webkit/appcache/appcache_thread.h	(revision 41894)
+++ webkit/appcache/appcache_thread.h	(working copy)
@@ -11,21 +11,27 @@
 class Location;
 }
 
+class MessageLoop;
+
 namespace appcache {
 
 // The appcache system uses two threads, an IO thread and a DB thread.
 // It does not create these threads, the embedder is responsible for
 // providing them to the appcache library by providing a concrete
 // implementation of the PostTask and CurrentlyOn methods declared here,
-// and by calling the InitIDs method prior to using the appcache library.
+// and by calling the Init method prior to using the appcache library.
+// The disk_cache also requires the embedder to provide a thread message
+// loop.
 class AppCacheThread {
  public:
-  static void InitIDs(int db, int io) {
+  static void Init(int db, int io, MessageLoop* disk_cache_thread) {

[rvargas (doing something else), 2010/03/18 22:17:07]

I'm sad for the lack of symmetry but I see that this is the way it has to be.

     db_ = db;
     io_ = io;
+    disk_cache_thread_ = disk_cache_thread;
   }
   static int db() { return db_; }
   static int io() { return io_; }
+  static MessageLoop* disk_cache_thread() { return disk_cache_thread_; }
 
   static bool PostTask(int id,
                        const tracked_objects::Location& from_here,
@@ -45,6 +51,7 @@
 
   static int db_;
   static int io_;
+  static MessageLoop* disk_cache_thread_;
 };
 
 }  // namespace appcache