Move JNI annotations to annotations package.

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

 // Copyright 2014 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.content.browser;
 
 import android.graphics.Bitmap;
 import android.graphics.Rect;
 import android.util.SparseArray;
 
-import org.chromium.base.CalledByNative;
-import org.chromium.base.JNINamespace;
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.annotations.CalledByNative;
+import org.chromium.base.annotations.JNINamespace;
 import org.chromium.content_public.browser.readback_types.ReadbackResponse;
 import org.chromium.ui.base.WindowAndroid;
 
 /**
  * A class for reading back content.
  */
 @JNINamespace("content")
 public abstract class ContentReadbackHandler {
     /**
      * A callback interface for content readback into a bitmap.
@@ skipping 105 matching lines @@
     protected abstract boolean readyForReadback();
 
     private native long nativeInit();
     private native void nativeDestroy(long nativeContentReadbackHandler);
     private native void nativeGetContentBitmap(long nativeContentReadbackHandler, int readbackId,
             float scale, Bitmap.Config config, float x, float y, float width, float height,
             Object contentViewCore);
     private native void nativeGetCompositorBitmap(long nativeContentReadbackHandler,
             int readbackId, long nativeWindowAndroid);
 }