SampleApp: remove SkWindow::onPDFSaved, it does not work

platform_tools/android/apps/sample_app/src/main/java/com/skia/SkiaSampleView.java

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 package com.skia;
 
 import javax.microedition.khronos.egl.EGL10;
 import javax.microedition.khronos.egl.EGLConfig;
 import javax.microedition.khronos.egl.EGLDisplay;
 import javax.microedition.khronos.opengles.GL10;
 
 import android.content.Context;
 import android.opengl.EGL14;
 import android.opengl.GLSurfaceView;
 import android.os.Build;
 import android.util.Log;
 import android.view.MotionEvent;
+import android.widget.Toast;
 
 public class SkiaSampleView extends GLSurfaceView {
 
     private final SkiaSampleRenderer mSampleRenderer;
     private boolean mRequestedOpenGLAPI; // true == use (desktop) OpenGL. false == use OpenGL ES.
     private int mRequestedMSAASampleCount;
 
     public SkiaSampleView(Context ctx, String cmdLineFlags, boolean useOpenGL, int msaaSampleCount) {
         super(ctx);
 
@@ skipping 139 matching lines @@
         });
     }
     
     public void saveToPDF() {
         queueEvent(new Runnable() {
             @Override
             public void run() {
                 mSampleRenderer.saveToPDF();
             }
         });
+
+        String msg = getContext().getString(R.string.pdf_save_info);
+        Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT).show();
     }
 
     public boolean getUsesOpenGLAPI() {
         return mRequestedOpenGLAPI;
     }
 
     public int getMSAASampleCount() {
         return mSampleRenderer.getMSAASampleCount();
     }
 
@@ skipping 107 matching lines @@
                 EGLConfig config, int attribute, int defaultValue) {
             int[] value = new int[1];
             if (egl.eglGetConfigAttrib(display, config, attribute, value)) {
                 return value[0];
             }
             return defaultValue;
         }
 
     }
 }