Change mojo enums to be scoped enums in the generated C++ bindings.

Some mojo enums were previously not proper enums: they were constants
for bitfields. These have been replaced by const int32s in the mojoms:
- mus.mojom.EventFlags
- mus.mojom.MouseEventFlags
- mus.mojom.ResizeBehavior
- mus.mojom.WindowTree.AccessPolicy

Some mojo enum values now conflict with macros (mostly on Windows) and
needed to change:
- mus.mojom.Cursor.NULL became CURSOR_NULL (again)
- mus.mojom.KeyboardCode.DELETE became DELETE_KEY
- mus.mojom.WindowManagerErrorCode.ERROR_ACCESS_DENIED became
  ACCESS_DENIED
- device.usb.TransferDirection.IN became INBOUND
- device.usb.TransferDirection.OUT became OUTBOUND
- device.usb.TransferStatus.ERROR became TRANSFER_ERROR
- device.NFCRecordType.OPAQUE became OPAQUE_RECORD
- media.interfaces.Decryptor.Status.ERROR became DECRYPTION_ERROR
- skia.AlphaType.OPAQUE became ALPHA_TYPE_OPAQUE

Review URL: https://codereview.chromium.org/1527183003

Cr-Commit-Position: refs/heads/master@{#370632}

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/mojo/vfs_unittest.cc b/sql/mojo/vfs_unittest.cc
index e51f1bd..e53ea11 100644
--- a/sql/mojo/vfs_unittest.cc
+++ b/sql/mojo/vfs_unittest.cc
@@ -58,12 +58,12 @@ class VFSTest : public mojo::test::ApplicationTestBase,
     filesystem::FileSystemClientPtr client;
     binding_.Bind(GetProxy(&client));
 
-    filesystem::FileError error = filesystem::FILE_ERROR_FAILED;
+    filesystem::FileError error = filesystem::FileError::FAILED;
     filesystem::DirectoryPtr directory;
     files_->OpenFileSystem("temp", GetProxy(&directory), std::move(client),
                            mojo::Capture(&error));
     ASSERT_TRUE(files_.WaitForIncomingResponse());
-    ASSERT_EQ(filesystem::FILE_ERROR_OK, error);
+    ASSERT_EQ(filesystem::FileError::OK, error);
 
     vfs_.reset(new ScopedMojoFilesystemVFS(std::move(directory)));
   }