[Android WebView] Implement WebSettings.{get|set}LoadWithOverviewMode

android_webview/java/src/org/chromium/android_webview/AwContents.java

 // Copyright (c) 2012 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.
 
 package org.chromium.android_webview;
 
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ skipping 655 matching lines @@
     public void requestImageRef(Message msg) {
         if (msg == null || mNativeAwContents == 0) return;
 
         nativeUpdateLastHitTestData(mNativeAwContents);
         Bundle data = msg.getData();
         data.putString("url", mPossiblyStaleHitTestData.imgSrc);
         msg.setData(data);
         msg.sendToTarget();
     }
 
+    public void resetScrollAndScaleState() {
+        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
+            @Override
+            public void run() {
+                nativeResetScrollAndScaleState(mNativeAwContents);
+            }
+        });
+    }
+
     //--------------------------------------------------------------------------------------------
     //  View and ViewGroup method implementations
     //--------------------------------------------------------------------------------------------
 
     /**
      * @see android.webkit.View#onTouchEvent()
      */
     public boolean onTouchEvent(MotionEvent event) {
         if (mNativeAwContents == 0) return false;
         boolean rv = mContentViewCore.onTouchEvent(event);
@@ skipping 376 matching lines @@
     // Returns null if save state fails.
     private native byte[] nativeGetOpaqueState(int nativeAwContents);
 
     // Returns false if restore state fails.
     private native boolean nativeRestoreFromOpaqueState(int nativeAwContents, byte[] state);
 
     private native int nativeReleasePopupWebContents(int nativeAwContents);
     private native void nativeSetWebContents(int nativeAwContents, int nativeNewWebContents);
     private native void nativeFocusFirstNode(int nativeAwContents);
 
+    private native void nativeResetScrollAndScaleState(int nativeAwContents);
+
     private native boolean nativeDrawSW(int nativeAwContents, Canvas canvas, int clipX, int clipY,
             int clipW, int clipH);
     private native int nativeGetAwDrawGLViewContext(int nativeAwContents);
     private native Picture nativeCapturePicture(int nativeAwContents);
     private native void nativeEnableOnNewPicture(int nativeAwContents, boolean enabled,
             boolean invalidationOnly);
 
     private native void nativeInvokeGeolocationCallback(
             int nativeAwContents, boolean value, String requestingFrame);
 }