Move media library path resolution into Chrome path provider.

media/base/media.h

Index: media/base/media.h
diff --git a/media/base/media.h b/media/base/media.h
index 3d1a83a2dda2ada638191cb36a5725d3345c2d08..84312a7e24eb6d05c4878e988c6c8cc766460727 100644
--- a/media/base/media.h
+++ b/media/base/media.h
@@ -13,12 +13,14 @@ class FilePath;
 namespace media {
 
 // Attempts to initialize the media library (loading DLLs, DSOs, etc.).
+//
 // If |module_dir| is the emptry string, then the system default library paths
 // are searched for the dynamic libraries.  If a |module_dir| is provided, then
 // only the specified |module_dir| will be searched for the dynamic libraries.
-//
+void InitializeMediaLibrary(const FilePath& module_dir);
+
 // Returns true if everything was successfully initialized, false otherwise.
-bool InitializeMediaLibrary(const FilePath& module_dir);
+bool IsMediaLibraryInitialized();
 
 // Attempts to initialize OpenMAX library.
 //