[WebView] Enable scrolling in fullscreen.

android_webview/java/src/org/chromium/android_webview/AwViewMethods.java

Index: android_webview/java/src/org/chromium/android_webview/AwViewMethods.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwViewMethods.java b/android_webview/java/src/org/chromium/android_webview/AwViewMethods.java
index e5031ad11f134a99808eee202b87b64f8dce6d88..02b360d2f042a04f605c24ad1af6ab34c0b982f7 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwViewMethods.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwViewMethods.java
@@ -112,4 +112,45 @@ interface AwViewMethods {
      * @see android.view.View#onWindowVisibilityChanged
      */
     void onWindowVisibilityChanged(int visibility);
+
+    /**
+     * @see android.view.View#onScrollChanged
+     */
+    void onContainerViewScrollChanged(int l, int t, int oldl, int oldt);
+
+    /**
+     * @see android.view.View#onOverScrolled
+     */
+    void onContainerViewOverScrolled(
+            int scrollX, int scrollY, boolean clampedX, boolean clampedY);
+
+    /**
+     * @see android.view.View#computeHorizontalScrollRange
+     */
+    int computeHorizontalScrollRange();
+
+    /**
+     * @see android.view.View#computeHorizontalScrollOffset
+     */
+    int computeHorizontalScrollOffset();
+
+    /**
+     * @see android.view.View#computeVerticalScrollRange
+     */
+    int computeVerticalScrollRange();
+
+    /**
+     * @see android.view.View#computeVerticalScrollOffset
+     */
+    int computeVerticalScrollOffset();
+
+    /**
+     * @see android.view.View#computeVerticalScrollExtent
+     */
+    int computeVerticalScrollExtent();
+
+    /**
+     * @see android.view.View#computeScroll
+     */
+    void computeScroll();
 }