Make DispatchKeyEventPostIME() asynchronous.

services/ui/public/interfaces/ime/ime.mojom

 // Copyright 2016 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.
 
 module ui.mojom;
 
 import "mojo/common/text_direction.mojom";
 import "ui/events/mojo/event.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "ui/gfx/range/mojo/range.mojom";
@@ skipping 166 matching lines @@
   // Inserts a given text at the insertion point. Current composition text or
   // selection will be removed. This method should never be called when the
   // current text input type is TEXT_INPUT_TYPE_NONE.
   InsertText(string text);
 
   // Inserts a single character at the insertion point. Unlike InsertText(),
   // the character is not processed. See ui::TextInputClient::InsertChar()
   // for more details.
   InsertChar(ui.mojom.Event event);
 
+  // Dispatch a key event skipping IME. Returns true if event was consumed.
+  DispatchKeyEventPostIME(ui.mojom.Event event) => (bool stopped_propagation);
+
   // TODO(moshayedi): Add functions corresponding to ui::TextInputClient for:
   // - Input context information
   // - Document content operations
   // - Miscellaneous functions
   // crbug.com/631527.
 };