Isolated FS for media devices.

webkit/fileapi/isolated_mount_point_provider.cc

Index: webkit/fileapi/isolated_mount_point_provider.cc
diff --git a/webkit/fileapi/isolated_mount_point_provider.cc b/webkit/fileapi/isolated_mount_point_provider.cc
index a8875a0b670ea2abc0ec462869e84ab36449890a..3ab426fcf85a967be1feffda86811c2f1a557a63 100644
--- a/webkit/fileapi/isolated_mount_point_provider.cc
+++ b/webkit/fileapi/isolated_mount_point_provider.cc
@@ -21,8 +21,14 @@
 #include "webkit/fileapi/isolated_file_util.h"
 #include "webkit/fileapi/local_file_stream_writer.h"
 #include "webkit/fileapi/local_file_system_operation.h"
+#include "webkit/fileapi/media/media_file_system_config.h"
 #include "webkit/fileapi/native_file_util.h"
 
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+#include "webkit/fileapi/media/device_media_file_util.h"
+#include "webkit/fileapi/media/media_device_map_service.h"
+#endif
+
 namespace fileapi {
 
 namespace {
@@ -31,11 +37,33 @@ IsolatedContext* isolated_context() {
   return IsolatedContext::GetInstance();
 }
 
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+bool GetDeviceForUrl(const FileSystemURL& url,
+                     FileSystemContext* context,
+                     scoped_refptr<MediaDeviceInterfaceImpl>* device) {
+
+  FilePath root_path;
+  if (!isolated_context()->GetRegisteredPath(url.filesystem_id(), &root_path))
+    return false;
+
+  // Add the media device if required.
+  MediaDeviceMapService::GetInstance()->AddMediaDevice(
+        root_path.value(), context->file_task_runner());
+
+  return MediaDeviceMapService::GetInstance()->GetMediaDevice(root_path.value(),
+                                                              device);
+}
+#endif
+
 }  // namespace
 
 IsolatedMountPointProvider::IsolatedMountPointProvider()
     : isolated_file_util_(new IsolatedFileUtil()),
       dragged_file_util_(new DraggedFileUtil()) {
+  // TODO(kmadhusu): Initialize device_media_file_util_ in initialization list.
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+  device_media_file_util_.reset(new DeviceMediaFileUtil);
+#endif
 }
 
 IsolatedMountPointProvider::~IsolatedMountPointProvider() {
@@ -78,6 +106,10 @@ FileSystemFileUtil* IsolatedMountPointProvider::GetFileUtil(
     FileSystemType type) {
   if (type == kFileSystemTypeDragged)
     return dragged_file_util_.get();
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+  else if (type == kFileSystemTypeDeviceMedia)
+    return device_media_file_util_.get();
+#endif
   else
     return isolated_file_util_.get();
 }
@@ -95,6 +127,15 @@ IsolatedMountPointProvider::CreateFileSystemOperation(
     FileSystemContext* context) const {
   scoped_ptr<FileSystemOperationContext> operation_context(
       new FileSystemOperationContext(context));
+
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+  if (url.type() == kFileSystemTypeDeviceMedia) {
+    scoped_refptr<MediaDeviceInterfaceImpl> device;
+    if (GetDeviceForUrl(url, context, &device))
+      operation_context->set_media_device(device);
+  }
+#endif
+
   return new LocalFileSystemOperation(context, operation_context.Pass());
 }