Changed Blimp client to start with white screen before drawing contents

blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java

Index: blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java
diff --git a/blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java b/blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java
index 27d6a44ad8044f4fb403fdf36870726eeaaa1a5e..acf2ad4019e329a31163d76914b8ca7cd900ee93 100644
--- a/blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java
+++ b/blimp/client/app/android/java/src/org/chromium/blimp/BlimpView.java
@@ -5,6 +5,7 @@
 package org.chromium.blimp;
 
 import android.content.Context;
+import android.graphics.Color;
 import android.graphics.Point;
 import android.os.Build;
 import android.util.AttributeSet;
@@ -14,6 +15,7 @@ import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.WindowManager;
 
+import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.blimp.session.BlimpClientSession;
 import org.chromium.ui.UiUtils;
@@ -58,6 +60,7 @@ public class BlimpView extends SurfaceView implements SurfaceHolder.Callback {
         mNativeBlimpViewPtr = nativeInit(blimpClientSession, physicalSize.x, physicalSize.y,
                 displaySize.x, displaySize.y, deviceScaleFactor);
         getHolder().addCallback(this);
+        setBackgroundColor(Color.WHITE);
         setVisibility(VISIBLE);
     }
 
@@ -177,6 +180,13 @@ public class BlimpView extends SurfaceView implements SurfaceHolder.Callback {
                 || eventAction == MotionEvent.ACTION_POINTER_UP;
     }
 
+    @CalledByNative
+    public void onSwapBuffersCompleted() {
+        if (getBackground() == null) return;
+
+        setBackgroundResource(0);
+    }
+
     // Native Methods
     private native long nativeInit(BlimpClientSession blimpClientSession, int physicalWidth,
             int physicalHeight, int displayWidth, int displayHeight, float dpToPixel);