[Ash] Introduces new IPC messages to support IME on Win-Ash

ui/metro_viewer/ime_types.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_METRO_VIEWER_IME_TYPES_H_
+#define UI_METRO_VIEWER_IME_TYPES_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/strings/string16.h"
+
+namespace metro_viewer {
+
+// An equivalent to ui::CompositionUnderline defined in
+// "ui/base/ime/composition_underline.h". Redefined here to avoid dependency
+// on ui.gyp from metro_driver.gyp.
+struct UnderlineInfo {
+  UnderlineInfo();
+  int32 start_offset;
+  int32 end_offset;
+  bool thick;
+};
+
+// An equivalent to ui::CompositionText defined in
+// "ui/base/ime/composition_text.h". Redefined here to avoid dependency
+// on ui.gyp from metro_driver.gyp.
+struct Composition {
+  Composition();
+  ~Composition();
+  string16 text;
+  int32 selection_start;
+  int32 selection_end;
+  std::vector<UnderlineInfo> underlines;
+};
+
+// An equivalent to Win32 RECT structure. This can be gfx::Rect but redefined
+// here to avoid dependency on gfx.gyp from metro_driver.gyp.
+struct CharacterBounds {
+  CharacterBounds();
+  int32 left;
+  int32 top;
+  int32 right;
+  int32 bottom;
+};
+
+}  // namespace metro_viewer
+
+#endif  // UI_METRO_VIEWER_IME_TYPES_H_