Fix a black screen when opening a child Shell.

content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java
===================================================================
--- content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java	(revision 254956)
+++ content/public/android/java/src/org/chromium/content/browser/ContentViewRenderView.java	(working copy)
@@ -77,6 +77,8 @@
 
             @Override
             public void surfaceCreated(SurfaceHolder holder) {
+                setSurfaceViewBackgroundColor(Color.WHITE);
+
                 assert mNativeContentViewRenderView != 0;
                 nativeSurfaceCreated(mNativeContentViewRenderView);
 
@@ -93,7 +95,6 @@
             }
         };
         mSurfaceView.getHolder().addCallback(mSurfaceCallback);
-        setSurfaceViewBackgroundColor(Color.WHITE);
 
         mVSyncAdapter = new VSyncAdapter(getContext());
         addView(mSurfaceView,