DialogSurfaceManager implementation.

media/base/android/dialog_surface_manager.cc

Index: media/base/android/dialog_surface_manager.cc
diff --git a/media/base/android/dialog_surface_manager.cc b/media/base/android/dialog_surface_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..769349b7361b92351c01c7bb6e78f338cfcbcf30
--- /dev/null
+++ b/media/base/android/dialog_surface_manager.cc
@@ -0,0 +1,84 @@
+// Copyright 2016 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 "media/base/android/dialog_surface_manager.h"
+
+#include <algorithm>
+#include <limits>
+#include <memory>
+#include <utility>
+
+#include "base/android/build_info.h"
+#include "base/android/jni_android.h"
+#include "base/android/jni_array.h"
+#include "base/android/jni_string.h"
+#include "base/logging.h"
+#include "base/numerics/safe_conversions.h"
+#include "base/strings/string_util.h"
+#include "gpu/ipc/common/android/dialog_surface_lookup.h"
+#include "jni/DialogSurfaceManagerWrapper_jni.h"
+#include "media/base/bit_reader.h"
+#include "media/base/decrypt_config.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ConvertJavaStringToUTF8;
+using base::android::ConvertUTF8ToJavaString;
+using base::android::JavaIntArrayToIntVector;
+using base::android::ScopedJavaGlobalRef;
+using base::android::ScopedJavaLocalRef;
+
+namespace media {
+
+static base::LazyInstance<DialogSurfaceManager>::Leaky g_surface_manager =
+    LAZY_INSTANCE_INITIALIZER;
+
+DialogSurfaceManager& DialogSurfaceManager::Get() {
+  return g_surface_manager.Get();
+}
+
+DialogSurfaceManager::DialogSurfaceManager() {
+  JNIEnv* env = AttachCurrentThread();
+  CHECK(env);
+
+  // Get the surface manager from the browser.
+  // This can, in principle, be run in the gpu process if we send the window
+  // token from the browser.  See https://codereview.chromium.org/1967553002 .
+  ScopedJavaLocalRef<jobject> unwrapped_manager(
+      gpu::DialogSurfaceLookup::GetInstance()->GetDialogSurfaceManager());
+
+  // Wrap the manager for local access.
+  j_wrapped_manager_.Reset(
+      Java_DialogSurfaceManagerWrapper_wrap(env, unwrapped_manager.obj()));
+}
+
+DialogSurfaceManager::~DialogSurfaceManager() {}
+
+std::unique_ptr<DialogSurface> DialogSurfaceManager::CreateSurface(
+    base::ProcessHandle pid,
+    int frame_id,
+    const Config& config,
+    const DialogSurface::Callback& callback) {
+  JNIEnv* env = AttachCurrentThread();
+  CHECK(env);
+
+  // TODO(liberato): wrap the callback here, and send in place of the nullptr.
+  // This was omitted for the first CL.
+
+  ScopedJavaGlobalRef<jobject> result(
+      Java_DialogSurfaceManagerWrapper_createSurface(
+          env, j_wrapped_manager_.obj(), pid, frame_id, nullptr,
+          config.rect.x(), config.rect.y(), config.rect.width(),
+          config.rect.height()));
+  // NOTE: result is always null right now.
+
+  std::unique_ptr<DialogSurface> surface;
+
+  return surface;
+}
+
+bool DialogSurfaceManager::RegisterDialogSurfaceManager(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace media