Support focus highlight in Android window

components/arc/common/accessibility_helper.mojom

Index: components/arc/common/accessibility_helper.mojom
diff --git a/components/arc/common/accessibility_helper.mojom b/components/arc/common/accessibility_helper.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..b20b2ccb223e6699e7b15a96226914546a5162c0
--- /dev/null
+++ b/components/arc/common/accessibility_helper.mojom
@@ -0,0 +1,31 @@
+// 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.
+
+// Next MinVersion: 1
+
+module arc.mojom;
+
+import "screen_rect.mojom";
+
+// AccessibilityEventType is a enum which corresponds to event types of AccessibilityEvent in

[kinaba, 2017/01/19 03:50:02]

I'm not sure about the coding style for mojom so it may be ok as-is,
but how about splitting the lines with 80-char width?
(To make it look better on codereview?)

[yawano, 2017/01/19 06:30:35]

Done.

Also fixed other lines in this file as they wrap in 80 characters.

+// Android.
+[extensible]
+enum AccessibilityEventType {
+  VIEW_FOCUSED,
+};
+
+// AccessibilityNodeInfoData is a struct to contain info of AccessibilityNodeInfo in Android.
+struct AccessibilityNodeInfoData {
+  ScreenRect boundsInScreen;
+};
+
+// Next method ID: 1
+interface AccessibilityHelperHost {
+  OnAccessibilityEvent@0(AccessibilityEventType eventType, AccessibilityNodeInfoData eventSource);
+};
+
+// Next method ID: 1
+interface AccessibilityHelperInstance {
+  Init@0(AccessibilityHelperHost host);
+};