Move //mojo/shell to //shell

shell/android/apk/src/org/chromium/mojo_shell_apk/Bootstrap.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.mojo_shell_apk;
 
 import android.content.Context;
 
 import org.chromium.base.JNINamespace;
 
@@ skipping 26 matching lines @@
     public void run() {
         System.load(mBootstrapNativeLibrary.getAbsolutePath());
         System.load(mApplicationNativeLibrary.getAbsolutePath());
         nativeBootstrap(mContext, mApplicationNativeLibrary.getAbsolutePath(), mHandle,
                 mRunApplicationPtr);
     }
 
     native void nativeBootstrap(Context context, String libraryPath, int handle,
             long runApplicationPtr);
 }