Address the multiple resizing during initializing

problem adobe run into.

When a child view is created, we first hide it if
the webview is not ready to draw yet. This will avoid
the multiple resizing notification.

core/java/android/webkit/BrowserFrame.java

@@ -339,6 +339,7 @@ class BrowserFrame extends Handler {
         // loadType is not used yet
         if (isMainFrame) {
             mCommitted = true;
+            mWebViewCore.getWebView().mViewManager.postResetStateAll();
         }
     }
 

core/java/android/webkit/ViewManager.java

@@ -16,7 +16,6 @@
 
 package android.webkit;
 
-import android.content.Context;
 import android.view.View;
 import android.widget.AbsoluteLayout;
 
@@ -26,6 +25,7 @@ class ViewManager {
     private final WebView mWebView;
     private final ArrayList<ChildView> mChildren = new ArrayList<ChildView>();
     private boolean mHidden;
+    private boolean mReadyToDraw;
 
     class ChildView {
         int x;
@@ -70,6 +70,9 @@ class ViewManager {
         void attachViewOnUIThread(AbsoluteLayout.LayoutParams lp) {
             mWebView.addView(mView, lp);
             mChildren.add(this);
+            if (!mReadyToDraw) {
+                mView.setVisibility(View.GONE);
+            }
         }
 
         void removeView() {
@@ -154,4 +157,23 @@ class ViewManager {
         }
         mHidden = false;
     }
+
+    void postResetStateAll() {
+        mWebView.mPrivateHandler.post(new Runnable() {
+            public void run() {
+                mReadyToDraw = false;
+            }
+        });
+    }
+
+    void postReadyToDrawAll() {
+        mWebView.mPrivateHandler.post(new Runnable() {
+            public void run() {
+                mReadyToDraw = true;
+                for (ChildView v : mChildren) {
+                    v.mView.setVisibility(View.VISIBLE);
+                }
+            }
+        });
+    }
 }

core/java/android/webkit/WebView.java

@@ -773,12 +773,11 @@ public class WebView extends AbsoluteLayout
         init();
 
         mCallbackProxy = new CallbackProxy(context, this);
+        mViewManager = new ViewManager(this);
         mWebViewCore = new WebViewCore(context, this, mCallbackProxy, javascriptInterfaces);
         mDatabase = WebViewDatabase.getInstance(context);
         mScroller = new Scroller(context);
 
-        mViewManager = new ViewManager(this);
-
         mZoomButtonsController = new ZoomButtonsController(this);
         mZoomButtonsController.setOnZoomListener(mZoomListener);
         // ZoomButtonsController positions the buttons at the bottom, but in
@@ -5410,7 +5409,8 @@ public class WebView extends AbsoluteLayout
                     final Point viewSize = draw.mViewPoint;
                     boolean useWideViewport = settings.getUseWideViewPort();
                     WebViewCore.RestoreState restoreState = draw.mRestoreState;
-                    if (restoreState != null) {
+                    boolean hasRestoreState = restoreState != null;
+                    if (hasRestoreState) {
                         mInZoomOverview = false;
                         mLastScale = mInitialScaleInPercent > 0
                                 ? mInitialScaleInPercent / 100.0f
@@ -5500,6 +5500,9 @@ public class WebView extends AbsoluteLayout
                     if (draw.mFocusSizeChanged && inEditingMode()) {
                         mFocusSizeChanged = true;
                     }
+                    if (hasRestoreState) {
+                        mViewManager.postReadyToDrawAll();
+                    }
                     break;
                 }
                 case WEBCORE_INITIALIZED_MSG_ID:

core/java/android/webkit/WebViewCore.java

@@ -1924,7 +1924,14 @@ final class WebViewCore {
 
         if (mWebView == null) return;
 
-        setupViewport(standardLoad || mRestoredScale > 0);
+        boolean updateRestoreState = standardLoad || mRestoredScale > 0;
+        setupViewport(updateRestoreState);
+        // if updateRestoreState is true, ViewManager.postReadyToDrawAll() will
+        // be called after the WebView restore the state. If updateRestoreState
+        // is false, start to draw now as it is ready.
+        if (!updateRestoreState) {
+            mWebView.mViewManager.postReadyToDrawAll();
+        }
 
         // reset the scroll position, the restored offset and scales
         mWebkitScrollX = mWebkitScrollY = mRestoredX = mRestoredY