Android: Remove Surface cruft

content/common/android/scoped_java_surface.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 "content/common/android/scoped_java_surface.h"
+
+#include "base/logging.h"
+#include "content/common/android/surface_texture_bridge.h"
+#include "jni/Surface_jni.h"
+
+namespace {
+
+bool g_jni_initialized = false;
+
+void RegisterNativesIfNeeded(JNIEnv* env) {
+  if (!g_jni_initialized) {
+    JNI_Surface::RegisterNativesImpl(env);
+    g_jni_initialized = true;
+  }
+}
+
+}  // anonymous namespace
+
+namespace content {
+
+ScopedJavaSurface::ScopedJavaSurface() {
+}
+
+ScopedJavaSurface::ScopedJavaSurface(
+    const base::android::JavaRef<jobject>& surface) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  RegisterNativesIfNeeded(env);
+  DCHECK(env->IsInstanceOf(surface.obj(), g_Surface_clazz));
+  j_surface_.Reset(surface);
+}
+
+ScopedJavaSurface::ScopedJavaSurface(
+    const SurfaceTextureBridge* surface_texture) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  RegisterNativesIfNeeded(env);
+  ScopedJavaLocalRef<jobject> tmp(JNI_Surface::Java_Surface_Constructor(
+      env, surface_texture->j_surface_texture().obj()));
+  DCHECK(!tmp.is_null());
+  j_surface_.Reset(tmp);
+}
+
+ScopedJavaSurface::~ScopedJavaSurface() {
+  if (!j_surface_.is_null()) {
+    JNIEnv* env = base::android::AttachCurrentThread();
+    JNI_Surface::Java_Surface_release(env, j_surface_.obj());
+  }
+}
+
+}  // namespace content