Move android mediaplayer from render process to browser process.

content/browser/android/surface_texture_peer_browser_impl.cc

+// Copyright (c) 2012 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/browser/android/surface_texture_peer_browser_impl.h"
+
+#include "content/browser/android/media_player_manager_android.h"
+#include "content/browser/renderer_host/render_view_host_impl.h"
+#include "content/common/android/surface_callback.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_process_host.h"
+#include "jni/BrowserProcessSurfaceTexture_jni.h"
+#include "media/base/android/media_player_bridge.h"
+
+namespace content {
+
+// Pass a java surface object to the MediaPlayerBridge object
+// identified by render process handle, render view ID and player ID.
+static void SetSurfacePeer(jobject j_surface,
+                           base::ProcessHandle render_process_handle,
+                           int render_view_id,
+                           int player_id) {
+  int renderer_id = 0;
+  RenderProcessHost::iterator it = RenderProcessHost::AllHostsIterator();
+  while (!it.IsAtEnd()) {
+    if (it.GetCurrentValue()->GetHandle() == render_process_handle) {
+      renderer_id = it.GetCurrentValue()->GetID();
+      break;
+    }
+    it.Advance();
+  }
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  DCHECK(env);
+  if (renderer_id) {
+    RenderViewHostImpl* host = RenderViewHostImpl::FromID(
+        renderer_id, render_view_id);
+    if (host) {
+      media::MediaPlayerBridge* player =
+          host->media_player_manager()->GetPlayer(player_id);
+      if (player) {
+          player->SetVideoSurface(j_surface);
+      }
+    }
+  }
+
+  ReleaseSurface(j_surface);
+  env->DeleteGlobalRef(j_surface);
+}
+
+SurfaceTexturePeerBrowserImpl::SurfaceTexturePeerBrowserImpl(
+    bool player_in_render_process)
+    : player_in_render_process_(player_in_render_process) {
+}
+
+SurfaceTexturePeerBrowserImpl::~SurfaceTexturePeerBrowserImpl() {
+  if (surface_.obj())
+    ReleaseSurface(surface_.obj());
+}
+
+void SurfaceTexturePeerBrowserImpl::EstablishSurfaceTexturePeer(
+    base::ProcessHandle render_process_handle,
+    SurfaceTextureTarget type,
+    jobject j_surface_texture,
+    int render_view_id,
+    int player_id) {
+  if (j_surface_texture == NULL)
+    return;
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  DCHECK(env);
+  if (player_in_render_process_) {
+    Java_BrowserProcessSurfaceTexture_establishSurfaceTexturePeer(
+        env, render_process_handle, type, j_surface_texture,
+        render_view_id, player_id);
+  } else {
+    base::android::ScopedJavaLocalRef<jclass> cls(
+        base::android::GetClass(env, "android/view/Surface"));
+    jmethodID constructor = GetMethodID(env, cls, "<init>",
+        "(Landroid/graphics/SurfaceTexture;)V");
+    ScopedJavaLocalRef<jobject> tmp(env,
+        env->NewObject(cls.obj(), constructor, j_surface_texture));
+    jobject surface = env->NewGlobalRef(tmp.obj());
+
+    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind(
+        &SetSurfacePeer, surface, render_process_handle, render_view_id,
+        player_id));
+  }
+}
+
+bool SurfaceTexturePeerBrowserImpl::RegisterBrowserProcessSurfaceTexture(
+    JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace content