[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/operations/read_file.cc

Index: chrome/browser/chromeos/file_system_provider/operations/read_file.cc
diff --git a/chrome/browser/chromeos/file_system_provider/operations/read_file.cc b/chrome/browser/chromeos/file_system_provider/operations/read_file.cc
index 20bfa46c23d256a08a18a94a5c1e8ad273a572e6..d69cfcc825549ed433735e39985d0cee0879605d 100644
--- a/chrome/browser/chromeos/file_system_provider/operations/read_file.cc
+++ b/chrome/browser/chromeos/file_system_provider/operations/read_file.cc
@@ -44,15 +44,16 @@ int CopyRequestValueToBuffer(scoped_ptr<RequestValue> value,
 
 }  // namespace
 
-ReadFile::ReadFile(
-    extensions::EventRouter* event_router,
+template <class DestinationPolicy>
+ReadFile<DestinationPolicy>::ReadFile(
+    typename DestinationPolicy::EventRouterType* event_router,
     const ProvidedFileSystemInfo& file_system_info,
     int file_handle,
     scoped_refptr<net::IOBuffer> buffer,
     int64 offset,
     int length,
     const ProvidedFileSystemInterface::ReadChunkReceivedCallback& callback)
-    : Operation(event_router, file_system_info),
+    : Operation<DestinationPolicy>(event_router, file_system_info),
       file_handle_(file_handle),
       buffer_(buffer),
       offset_(offset),
@@ -61,30 +62,33 @@ ReadFile::ReadFile(
       callback_(callback) {
 }
 
-ReadFile::~ReadFile() {
+template <class DestinationPolicy>
+ReadFile<DestinationPolicy>::~ReadFile() {
 }
 
-bool ReadFile::Execute(int request_id) {
+template <class DestinationPolicy>
+bool ReadFile<DestinationPolicy>::Execute(int request_id) {
   using extensions::api::file_system_provider::ReadFileRequestedOptions;
   TRACE_EVENT0("file_system_provider", "ReadFile::Execute");
 
   ReadFileRequestedOptions options;
-  options.file_system_id = file_system_info_.file_system_id();
+  options.file_system_id = this->file_system_info_.file_system_id();
   options.request_id = request_id;
   options.open_request_id = file_handle_;
   options.offset = offset_;
   options.length = length_;
 
-  return SendEvent(
+  return this->SendEvent(
       request_id,
       extensions::api::file_system_provider::OnReadFileRequested::kEventName,
       extensions::api::file_system_provider::OnReadFileRequested::Create(
           options));
 }
 
-void ReadFile::OnSuccess(int /* request_id */,
-                         scoped_ptr<RequestValue> result,
-                         bool has_more) {
+template <class DestinationPolicy>
+void ReadFile<DestinationPolicy>::OnSuccess(int /* request_id */,
+                                 scoped_ptr<RequestValue> result,
+                                 bool has_more) {
   TRACE_EVENT0("file_system_provider", "ReadFile::OnSuccess");
   const int copy_result = CopyRequestValueToBuffer(
       result.Pass(), buffer_, current_offset_, length_);
@@ -101,13 +105,16 @@ void ReadFile::OnSuccess(int /* request_id */,
   callback_.Run(copy_result, has_more, base::File::FILE_OK);
 }
 
-void ReadFile::OnError(int /* request_id */,
-                       scoped_ptr<RequestValue> /* result */,
-                       base::File::Error error) {
+template <class DestinationPolicy>
+void ReadFile<DestinationPolicy>::OnError(int /* request_id */,
+                               scoped_ptr<RequestValue> /* result */,
+                               base::File::Error error) {
   TRACE_EVENT0("file_system_provider", "ReadFile::OnError");
   callback_.Run(0 /* chunk_length */, false /* has_more */, error);
 }
 
+FOR_EACH_DESTINATION_SPECIALIZE(ReadFile)
+
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos