Notify CloseFile from Pepper to FileSystem.

content/common/fileapi/file_system_dispatcher.cc

Index: content/common/fileapi/file_system_dispatcher.cc
diff --git a/content/common/fileapi/file_system_dispatcher.cc b/content/common/fileapi/file_system_dispatcher.cc
index dc3309e61b7b8ba10b9870231ad79b6892ac3843..7fed779eca2fbd11e3788d78df3784d01cd3cd09 100644
--- a/content/common/fileapi/file_system_dispatcher.cc
+++ b/content/common/fileapi/file_system_dispatcher.cc
@@ -9,6 +9,37 @@
 #include "content/common/child_thread.h"
 #include "content/common/fileapi/file_system_messages.h"
 
+namespace {
+
+// Dummy dispatcher used only for issuing a request_id.
+class CloseFileDispatcher : public fileapi::FileSystemCallbackDispatcher {

[kinuko, 2012/06/13 06:38:29]

We usually put these dispatchers on the caller's site (as
AsyncOpenFileSystemURLCallbackTranslator does in pepper_plugin_delegate_impl.cc)
since it's not what the common FSDispatcher wants to care in general.

Or, I guess we can make this IPC send-only and don't let the browser reply?

[kinaba, 2012/06/25 11:14:02]

Sounds good. I made it into a send-only message.

+ public:
+  virtual void DidSucceed() {}
+  virtual void DidFail(base::PlatformFileError error_code) {}
+
+  virtual void DidReadMetadata(const base::PlatformFileInfo& file_info,
+                               const FilePath& platform_path) {
+    NOTREACHED();
+  }
+  virtual void DidReadDirectory(
+      const std::vector<base::FileUtilProxy::Entry>& entries,
+      bool has_more) {
+    NOTREACHED();
+  }
+  virtual void DidOpenFileSystem(const std::string& name,
+                                 const GURL& root) {
+    NOTREACHED();
+  }
+  virtual void DidWrite(int64 bytes, bool complete) {
+    NOTREACHED();
+  }
+  virtual void DidOpenFile(base::PlatformFile file) {
+    NOTREACHED();
+  }
+};
+
+}  // namespace
+
 FileSystemDispatcher::FileSystemDispatcher() {
 }
 
@@ -230,6 +261,17 @@ bool FileSystemDispatcher::OpenFile(
   return true;
 }
 
+bool FileSystemDispatcher::NotifyCloseFile(const GURL& file_path) {
+  fileapi::FileSystemCallbackDispatcher* dispatcher = new CloseFileDispatcher;
+  int request_id = dispatchers_.Add(dispatcher);
+  if (!ChildThread::current()->Send(
+          new FileSystemHostMsg_NotifyCloseFile(request_id, file_path))) {
+    dispatchers_.Remove(request_id);  // destroys |dispatcher|
+    return false;
+  }
+  return true;
+}
+
 bool FileSystemDispatcher::CreateSnapshotFile(
     const GURL& blob_url,
     const GURL& file_path,