Implement "appinstalled" event on Android.

third_party/WebKit/Source/core/frame/DOMWindowInstallation.h

Index: third_party/WebKit/Source/core/frame/DOMWindowInstallation.h
diff --git a/third_party/WebKit/Source/core/events/EventUtil.h b/third_party/WebKit/Source/core/frame/DOMWindowInstallation.h
similarity index 51%
copy from third_party/WebKit/Source/core/events/EventUtil.h
copy to third_party/WebKit/Source/core/frame/DOMWindowInstallation.h
index 8c65453493617973914a19cdcd49890d34c82141..d511b1e5621a99e9ce9d92f0d5feb7af4b41bc63 100644
--- a/third_party/WebKit/Source/core/events/EventUtil.h
+++ b/third_party/WebKit/Source/core/frame/DOMWindowInstallation.h
@@ -2,19 +2,19 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef EventUtil_h
-#define EventUtil_h
+#ifndef DOMWindowInstallation_h
+#define DOMWindowInstallation_h
 
 #include "core/EventTypeNames.h"
+#include "core/events/EventTarget.h"
 
 namespace blink {
 
-namespace EventUtil {
-
-bool isPointerEventType(const AtomicString& eventType);
-
-}  // namespace eventUtil
+class DOMWindowInstallation {
+ public:
+  DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(appinstalled);
+};
 
 }  // namespace blink
 
-#endif  // EventUtil_h
+#endif  // DOMWindowInstallation_h