[WIP] Provided file system from NACL.

chrome/browser/chromeos/fileapi/file_system_backend.cc

Index: chrome/browser/chromeos/fileapi/file_system_backend.cc
diff --git a/chrome/browser/chromeos/fileapi/file_system_backend.cc b/chrome/browser/chromeos/fileapi/file_system_backend.cc
index 242356c027ba1ccc7dfa8a6a143aa71c1231c3a8..98d0e318d4ed002076549c612c0a6d8a8bf33c0c 100644
--- a/chrome/browser/chromeos/fileapi/file_system_backend.cc
+++ b/chrome/browser/chromeos/fileapi/file_system_backend.cc
@@ -34,6 +34,7 @@ bool FileSystemBackend::CanHandleURL(const storage::FileSystemURL& url) {
          url.type() == storage::kFileSystemTypeRestrictedNativeLocal ||
          url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided ||
+         url.type() == storage::kFileSystemTypePluginProvided ||
          url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage;
 }
 
@@ -84,6 +85,7 @@ bool FileSystemBackend::CanHandleType(storage::FileSystemType type) const {
     case storage::kFileSystemTypeNativeForPlatformApp:
     case storage::kFileSystemTypeDeviceMediaAsFileStorage:
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
       return true;
     default:
       return false;
@@ -228,6 +230,7 @@ storage::AsyncFileUtil* FileSystemBackend::GetAsyncFileUtil(
     case storage::kFileSystemTypeDrive:
       return drive_delegate_->GetAsyncFileUtil(type);
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
       return file_system_provider_delegate_->GetAsyncFileUtil(type);
     case storage::kFileSystemTypeNativeLocal:
     case storage::kFileSystemTypeRestrictedNativeLocal:
@@ -242,7 +245,8 @@ storage::AsyncFileUtil* FileSystemBackend::GetAsyncFileUtil(
 
 storage::WatcherManager* FileSystemBackend::GetWatcherManager(
     storage::FileSystemType type) {
-  if (type == storage::kFileSystemTypeProvided)
+  if (type == storage::kFileSystemTypeProvided ||
+      type == storage::kFileSystemTypePluginProvided)
     return file_system_provider_delegate_->GetWatcherManager(type);
 
   if (type == storage::kFileSystemTypeDeviceMediaAsFileStorage &&
@@ -287,7 +291,8 @@ storage::FileSystemOperation* FileSystemBackend::CreateFileSystemOperation(
   DCHECK(url.type() == storage::kFileSystemTypeNativeLocal ||
          url.type() == storage::kFileSystemTypeRestrictedNativeLocal ||
          url.type() == storage::kFileSystemTypeDrive ||
-         url.type() == storage::kFileSystemTypeProvided);
+         url.type() == storage::kFileSystemTypeProvided ||
+         url.type() == storage::kFileSystemTypePluginProvided);
   return storage::FileSystemOperation::Create(
       url,
       context,
@@ -298,6 +303,7 @@ bool FileSystemBackend::SupportsStreaming(
     const storage::FileSystemURL& url) const {
   return url.type() == storage::kFileSystemTypeDrive ||
          url.type() == storage::kFileSystemTypeProvided ||
+         url.type() == storage::kFileSystemTypePluginProvided ||
          url.type() == storage::kFileSystemTypeDeviceMediaAsFileStorage;
 }
 
@@ -306,6 +312,7 @@ bool FileSystemBackend::HasInplaceCopyImplementation(
   switch (type) {
     case storage::kFileSystemTypeDrive:
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
     case storage::kFileSystemTypeDeviceMediaAsFileStorage:
       return true;
     case storage::kFileSystemTypeNativeLocal:
@@ -333,6 +340,7 @@ scoped_ptr<storage::FileStreamReader> FileSystemBackend::CreateFileStreamReader(
       return drive_delegate_->CreateFileStreamReader(
           url, offset, max_bytes_to_read, expected_modification_time, context);
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
       return file_system_provider_delegate_->CreateFileStreamReader(
           url, offset, max_bytes_to_read, expected_modification_time, context);
     case storage::kFileSystemTypeNativeLocal:
@@ -362,6 +370,7 @@ scoped_ptr<storage::FileStreamWriter> FileSystemBackend::CreateFileStreamWriter(
     case storage::kFileSystemTypeDrive:
       return drive_delegate_->CreateFileStreamWriter(url, offset, context);
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
       return file_system_provider_delegate_->CreateFileStreamWriter(
           url, offset, context);
     case storage::kFileSystemTypeNativeLocal:
@@ -401,6 +410,7 @@ void FileSystemBackend::GetRedirectURLForContents(
       drive_delegate_->GetRedirectURLForContents(url, callback);
       return;
     case storage::kFileSystemTypeProvided:
+    case storage::kFileSystemTypePluginProvided:
       file_system_provider_delegate_->GetRedirectURLForContents(url,
                                                                   callback);
       return;