Support focus highlight in Android window

chrome/browser/chromeos/arc/accessibility_helper/arc_accessibility_helper_bridge.h

Index: chrome/browser/chromeos/arc/accessibility_helper/arc_accessibility_helper_bridge.h
diff --git a/chrome/browser/chromeos/arc/accessibility_helper/arc_accessibility_helper_bridge.h b/chrome/browser/chromeos/arc/accessibility_helper/arc_accessibility_helper_bridge.h
new file mode 100644
index 0000000000000000000000000000000000000000..8d4d9aa9febacd32d91cf15ecab0398fafbea3f5
--- /dev/null
+++ b/chrome/browser/chromeos/arc/accessibility_helper/arc_accessibility_helper_bridge.h
@@ -0,0 +1,41 @@
+// Copyright 2017 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 CHROME_BROWSER_CHROMEOS_ARC_ACCESSIBILITY_HELPER_ARC_ACCESSIBILITY_HELPER_BRIDGE_H_
+#define CHROME_BROWSER_CHROMEOS_ARC_ACCESSIBILITY_HELPER_ARC_ACCESSIBILITY_HELPER_BRIDGE_H_
+
+#include "components/arc/arc_service.h"
+#include "components/arc/common/accessibility_helper.mojom.h"
+#include "components/arc/instance_holder.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace arc {
+
+class ArcBridgeService;
+
+class ArcAccessibilityHelperBridge

[hidehiko, 2017/01/20 13:24:15]

Document what is the responsibility of this class?

[yawano, 2017/01/23 09:04:51]

Done.

+    : public ArcService,
+      public mojom::AccessibilityHelperHost,
+      public InstanceHolder<mojom::AccessibilityHelperInstance>::Observer {
+ public:
+  explicit ArcAccessibilityHelperBridge(ArcBridgeService* bridge_service);
+  ~ArcAccessibilityHelperBridge() override;
+
+  // InstanceHolder<mojom::AccessibilityHelperInstance>::Observer overrides.
+  void OnInstanceReady() override;
+
+  // mojom::AccessibilityHelperHost overrides.
+  void OnAccessibilityEvent(
+      mojom::AccessibilityEventType eventType,
+      mojom::AccessibilityNodeInfoDataPtr eventSource) override;
+
+ private:
+  mojo::Binding<mojom::AccessibilityHelperHost> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcAccessibilityHelperBridge);
+};
+
+}  // namespace arc
+
+#endif  // CHROME_BROWSER_CHROMEOS_ARC_ACCESSIBILITY_HELPER_ARC_ACCESSIBILITY_HELPER_BRIDGE_H_