Add an interface for Flash to clear its data.

content/browser/renderer_host/pepper_file_message_filter.h

Index: content/browser/renderer_host/pepper_file_message_filter.h
diff --git a/content/browser/renderer_host/pepper_file_message_filter.h b/content/browser/renderer_host/pepper_file_message_filter.h
index 325488e3c426818b0e117afd186c0d6cc8abc1c7..72425b48368b0e4d529827dd94a5e931c51baa3b 100644
--- a/content/browser/renderer_host/pepper_file_message_filter.h
+++ b/content/browser/renderer_host/pepper_file_message_filter.h
@@ -44,6 +44,11 @@ class PepperFileMessageFilter : public content::BrowserMessageFilter {
 
   int child_id() const { return child_id_; }
 
+  // Returns the name of the pepper data directory that we'll use for local
+  // storage. The argument is the profile path so that this can be used on any
+  // thread independent of the profile context.
+  static FilePath GetDataDirName(const FilePath& profile_path);
+
  private:
   friend class content::BrowserThread;
   friend class base::DeleteHelper<PepperFileMessageFilter>;