Remove many unused files from //skia/ext

ui/gfx/android/gfx_jni_registrar.cc

 // Copyright (c) 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.
 
 #include "ui/gfx/android/gfx_jni_registrar.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
-#include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/android/shared_device_display_info.h"
 #include "ui/gfx/android/view_configuration.h"
 
 namespace gfx {
 namespace android {
 
 static base::android::RegistrationMethod kGfxRegisteredMethods[] = {
   { "SharedDeviceDisplayInfo",
       SharedDeviceDisplayInfo::RegisterSharedDeviceDisplayInfo },
-  { "JavaBitmap", JavaBitmap::RegisterJavaBitmap },
   { "ViewConfiguration", ViewConfiguration::RegisterViewConfiguration }
 };
 
 bool RegisterJni(JNIEnv* env) {
   return RegisterNativeMethods(env, kGfxRegisteredMethods,
                                arraysize(kGfxRegisteredMethods));
 }
 
 }  // namespace android
 }  // namespace gfx