Notify CloseFile from Pepper to FileSystem.

content/browser/fileapi/fileapi_message_filter.h

Index: content/browser/fileapi/fileapi_message_filter.h
diff --git a/content/browser/fileapi/fileapi_message_filter.h b/content/browser/fileapi/fileapi_message_filter.h
index 88b8197dd34a34ab79d099d973420bb09372d523..c2194b51bea4572446e69907a3e471dc9fb21d69 100644
--- a/content/browser/fileapi/fileapi_message_filter.h
+++ b/content/browser/fileapi/fileapi_message_filter.h
@@ -102,6 +102,7 @@ class FileAPIMessageFilter : public content::BrowserMessageFilter {
                    const base::Time& last_modified_time);
   void OnCancel(int request_id, int request_to_cancel);
   void OnOpenFile(int request_id, const GURL& path, int file_flags);
+  void OnNotifyCloseFile(const GURL& path);
   void OnWillUpdate(const GURL& path);
   void OnDidUpdate(const GURL& path, int64 delta);
   void OnSyncGetPlatformPath(const GURL& path,
@@ -131,6 +132,7 @@ class FileAPIMessageFilter : public content::BrowserMessageFilter {
                         const std::vector<base::FileUtilProxy::Entry>& entries,
                         bool has_more);
   void DidOpenFile(int request_id,
+                   const GURL& path,
                    base::PlatformFileError result,
                    base::PlatformFile file,
                    base::ProcessHandle peer_handle);
@@ -179,6 +181,10 @@ class FileAPIMessageFilter : public content::BrowserMessageFilter {
   // all of them when the renderer process dies.
   base::hash_set<std::string> blob_urls_;
 
+  // Keep track of file system file URLs opened by OpenFile() in this process.
+  // Need to close all of them when the renderer process dies.
+  base::hash_set<std::string> open_filesystem_urls_;
+
   DISALLOW_COPY_AND_ASSIGN(FileAPIMessageFilter);
 };