Integrate external mount points to IsolatedContext

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 a54f8c7bd8c008f314d85ce52712a4fc4655b895..1a9c1e7a0c580735eec44632c0c724a088fd2f15 100644
--- a/webkit/fileapi/isolated_mount_point_provider.cc
+++ b/webkit/fileapi/isolated_mount_point_provider.cc
@@ -103,6 +103,7 @@ FileSystemFileUtil* IsolatedMountPointProvider::GetFileUtil(
     FileSystemType type) {
   switch (type) {
     case kFileSystemTypeIsolated:
+    case kFileSystemTypeNativeLocal:
       return isolated_file_util_.get();
     case kFileSystemTypeDragged:
       return dragged_file_util_.get();
@@ -116,6 +117,7 @@ FileSystemFileUtil* IsolatedMountPointProvider::GetFileUtil(
     case kFileSystemTypeTemporary:
     case kFileSystemTypePersistent:
     case kFileSystemTypeExternal:
+    case kFileSystemTypeGData:
     case kFileSystemTypeTest:
     case kFileSystemTypeUnknown:
       NOTREACHED();
@@ -126,8 +128,7 @@ FileSystemFileUtil* IsolatedMountPointProvider::GetFileUtil(
 FilePath IsolatedMountPointProvider::GetPathForPermissionsCheck(
     const FilePath& virtual_path) const {
   // For isolated filesystems we only check per-filesystem permissions.
-  NOTREACHED();
-  return virtual_path;
+  return FilePath();
 }
 
 FileSystemOperationInterface*