Make WebView shell handle generic motion events.

android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java

Index: android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java
diff --git a/android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java b/android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java
index cbce4a96b042961e51047c46ef55c1d72e89a153..c95a4eaf94295f5198ce5dccdafd77b46d28d030 100644
--- a/android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java
+++ b/android_webview/test/shell/src/org/chromium/android_webview/test/AwTestContainerView.java
@@ -384,6 +384,18 @@ public class AwTestContainerView extends FrameLayout {
     }
 
     @Override
+    public boolean onGenericMotionEvent(MotionEvent ev) {
+        super.onGenericMotionEvent(ev);
+        return mAwContents.onGenericMotionEvent(ev);
+    }
+
+    @Override
+    public boolean onHoverEvent(MotionEvent ev) {
+        super.onHoverEvent(ev);
+        return mAwContents.onHoverEvent(ev);
+    }
+
+    @Override
     public void onDraw(Canvas canvas) {
         if (isBackedByHardwareView()) {
             mHardwareView.updateScroll(getScrollX(), getScrollY());