[Android] Move the java content/ package to content_public/ to start the split.

android_webview/java/src/org/chromium/android_webview/AwPicture.java

 // Copyright 2013 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.graphics.Canvas;
 import android.graphics.Picture;
 import android.graphics.Rect;
 
 import org.chromium.base.JNINamespace;
-import org.chromium.content.common.CleanupReference;
+import org.chromium.content_public.common.CleanupReference;
 
 import java.io.OutputStream;
 
 // A simple wrapper around a SkPicture, that allows final rendering to be performed using the
 // chromium skia library.
 @JNINamespace("android_webview")
 class AwPicture extends Picture {
 
     private long mNativeAwPicture;
 
@@ skipping 62 matching lines @@
         throw new IllegalStateException("Unsupported in AwPicture");
     }
 
     private static native void nativeDestroy(long nativeAwPicture);
     private native int nativeGetWidth(long nativeAwPicture);
     private native int nativeGetHeight(long nativeAwPicture);
     private native void nativeDraw(long nativeAwPicture, Canvas canvas,
             int left, int top, int right, int bottom);
 }