FileSystem mods: Changes to snapshot file creation to remove dependencies on blobs.

content/common/fileapi/file_system_dispatcher.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/fileapi/file_system_dispatcher.h"
 
 #include "base/file_util.h"
 #include "base/process.h"
 #include "content/common/child_thread.h"
 #include "content/common/fileapi/file_system_messages.h"
@@ skipping 233 matching lines @@
 
   return true;
 }
 
 bool FileSystemDispatcher::NotifyCloseFile(const GURL& file_path) {
   return ChildThread::current()->Send(
       new FileSystemHostMsg_NotifyCloseFile(file_path));
 }
 
 bool FileSystemDispatcher::CreateSnapshotFile(
+    const GURL& file_path,
+    fileapi::FileSystemCallbackDispatcher* dispatcher) {
+  int request_id = dispatchers_.Add(dispatcher);
+  if (!ChildThread::current()->Send(
+          new FileSystemHostMsg_CreateSnapshotFile(
+              request_id, file_path))) {
+    dispatchers_.Remove(request_id);  // destroys |dispatcher|
+    return false;
+  }
+  return true;
+}
+
+bool FileSystemDispatcher::CreateSnapshotFile_Deprecated(
     const GURL& blob_url,
     const GURL& file_path,
     fileapi::FileSystemCallbackDispatcher* dispatcher) {
   int request_id = dispatchers_.Add(dispatcher);
   if (!ChildThread::current()->Send(
-          new FileSystemHostMsg_CreateSnapshotFile(
+          new FileSystemHostMsg_CreateSnapshotFile_Deprecated(
               request_id, blob_url, file_path))) {
     dispatchers_.Remove(request_id); // destroys |dispatcher|
     return false;
   }
   return true;
 }
 
 void FileSystemDispatcher::OnDidOpenFileSystem(int request_id,
                                                const std::string& name,
                                                const GURL& root) {
@@ skipping 16 matching lines @@
 void FileSystemDispatcher::OnDidReadMetadata(
     int request_id, const base::PlatformFileInfo& file_info,
     const base::FilePath& platform_path) {
   fileapi::FileSystemCallbackDispatcher* dispatcher =
       dispatchers_.Lookup(request_id);
   DCHECK(dispatcher);
   dispatcher->DidReadMetadata(file_info, platform_path);
   dispatchers_.Remove(request_id);
 }
 
+void FileSystemDispatcher::OnDidCreateSnapshotFile(
+    int request_id, const base::PlatformFileInfo& file_info,
+    const base::FilePath& platform_path) {
+  fileapi::FileSystemCallbackDispatcher* dispatcher =
+      dispatchers_.Lookup(request_id);
+  DCHECK(dispatcher);
+  dispatcher->DidCreateSnapshotFile(file_info, platform_path);
+  dispatchers_.Remove(request_id);
+  ChildThread::current()->Send(
+      new FileSystemHostMsg_DidReceiveSnapshotFile(request_id));
+}
+
 void FileSystemDispatcher::OnDidReadDirectory(
     int request_id,
     const std::vector<base::FileUtilProxy::Entry>& entries,
     bool has_more) {
   fileapi::FileSystemCallbackDispatcher* dispatcher =
       dispatchers_.Lookup(request_id);
   DCHECK(dispatcher);
   dispatcher->DidReadDirectory(entries, has_more);
   dispatchers_.Remove(request_id);
 }
@@ skipping 20 matching lines @@
 void FileSystemDispatcher::OnDidOpenFile(
     int request_id, IPC::PlatformFileForTransit file) {
   fileapi::FileSystemCallbackDispatcher* dispatcher =
       dispatchers_.Lookup(request_id);
   DCHECK(dispatcher);
   dispatcher->DidOpenFile(IPC::PlatformFileForTransitToPlatformFile(file));
   dispatchers_.Remove(request_id);
 }
 
 }  // namespace content