[Android] Move content/browser/{renderer_host => android}/java/*

content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.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/renderer_host/java/java_bridge_dispatcher_host_manager.h"
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_weak_ref.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "content/browser/renderer_host/java/java_bound_object.h"
-#include "content/browser/renderer_host/java/java_bridge_dispatcher_host.h"
-#include "content/common/android/hash_set.h"
-#include "content/common/java_bridge_messages.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_frame_host.h"
-#include "third_party/WebKit/public/web/WebBindings.h"
-
-namespace content {
-
-JavaBridgeDispatcherHostManager::JavaBridgeDispatcherHostManager(
-    WebContents* web_contents,
-    jobject retained_object_set)
-    : WebContentsObserver(web_contents),
-      retained_object_set_(base::android::AttachCurrentThread(),
-                           retained_object_set),
-      allow_object_contents_inspection_(true) {
-  DCHECK(retained_object_set);
-}
-
-JavaBridgeDispatcherHostManager::~JavaBridgeDispatcherHostManager() {
-  for (ObjectMap::iterator iter = objects_.begin(); iter != objects_.end();
-      ++iter) {
-    blink::WebBindings::releaseObject(iter->second);
-  }
-  DCHECK_EQ(0U, instances_.size());
-}
-
-void JavaBridgeDispatcherHostManager::AddNamedObject(const base::string16& name,
-                                                     NPObject* object) {
-  // Record this object in a map so that we can add it into RenderViewHosts
-  // created later. The JavaBridgeDispatcherHost instances will take a
-  // reference to the object, but we take one too, because this method can be
-  // called before there are any such instances.
-  blink::WebBindings::retainObject(object);
-  objects_[name] = object;
-
-  for (InstanceMap::iterator iter = instances_.begin();
-      iter != instances_.end(); ++iter) {
-    iter->second->AddNamedObject(name, object);
-  }
-}
-
-void JavaBridgeDispatcherHostManager::RemoveNamedObject(
-    const base::string16& name) {
-  ObjectMap::iterator iter = objects_.find(name);
-  if (iter == objects_.end()) {
-    return;
-  }
-
-  blink::WebBindings::releaseObject(iter->second);
-  objects_.erase(iter);
-
-  for (InstanceMap::iterator iter = instances_.begin();
-      iter != instances_.end(); ++iter) {
-    iter->second->RemoveNamedObject(name);
-  }
-}
-
-void JavaBridgeDispatcherHostManager::RenderFrameCreated(
-    RenderFrameHost* render_frame_host) {
-  // Creates a JavaBridgeDispatcherHost for the specified RenderViewHost and
-  // adds all currently registered named objects to the new instance.
-  scoped_refptr<JavaBridgeDispatcherHost> instance =
-      new JavaBridgeDispatcherHost(render_frame_host);
-
-  for (ObjectMap::const_iterator iter = objects_.begin();
-      iter != objects_.end(); ++iter) {
-    instance->AddNamedObject(iter->first, iter->second);
-  }
-
-  instances_[render_frame_host] = instance;
-}
-
-void JavaBridgeDispatcherHostManager::RenderFrameDeleted(
-    RenderFrameHost* render_frame_host) {
-  if (!instances_.count(render_frame_host))  // Needed for tests.
-    return;
-  instances_[render_frame_host]->RenderFrameDeleted();
-  instances_.erase(render_frame_host);
-}
-
-void JavaBridgeDispatcherHostManager::DocumentAvailableInMainFrame() {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  // Called when the window object has been cleared in the main frame.
-  JNIEnv* env = base::android::AttachCurrentThread();
-  base::android::ScopedJavaLocalRef<jobject> retained_object_set =
-      retained_object_set_.get(env);
-  if (!retained_object_set.is_null()) {
-    JNI_Java_HashSet_clear(env, retained_object_set);
-
-    // We also need to add back the named objects we have so far as they
-    // should survive navigations.
-    ObjectMap::iterator it = objects_.begin();
-    for (; it != objects_.end(); ++it) {
-      JNI_Java_HashSet_add(env, retained_object_set,
-                           JavaBoundObject::GetJavaObject(it->second));
-    }
-  }
-}
-
-bool JavaBridgeDispatcherHostManager::OnMessageReceived(
-    const IPC::Message& message,
-    RenderFrameHost* render_frame_host) {
-  DCHECK(render_frame_host);
-  if (!instances_.count(render_frame_host))
-    return false;
-  scoped_refptr<JavaBridgeDispatcherHost> instance =
-      instances_[render_frame_host];
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(JavaBridgeDispatcherHostManager, message)
-    IPC_MESSAGE_FORWARD_DELAY_REPLY(
-        JavaBridgeHostMsg_GetChannelHandle,
-        instance.get(),
-        JavaBridgeDispatcherHost::OnGetChannelHandle)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void JavaBridgeDispatcherHostManager::JavaBoundObjectCreated(
-    const base::android::JavaRef<jobject>& object) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-
-  JNIEnv* env = base::android::AttachCurrentThread();
-  base::android::ScopedJavaLocalRef<jobject> retained_object_set =
-      retained_object_set_.get(env);
-  if (!retained_object_set.is_null()) {
-    JNI_Java_HashSet_add(env, retained_object_set, object);
-  }
-}
-
-void JavaBridgeDispatcherHostManager::JavaBoundObjectDestroyed(
-    const base::android::JavaRef<jobject>& object) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-
-  JNIEnv* env = base::android::AttachCurrentThread();
-  base::android::ScopedJavaLocalRef<jobject> retained_object_set =
-      retained_object_set_.get(env);
-  if (!retained_object_set.is_null()) {
-    JNI_Java_HashSet_remove(env, retained_object_set, object);
-  }
-}
-
-void JavaBridgeDispatcherHostManager::SetAllowObjectContentsInspection(
-    bool allow) {
-  allow_object_contents_inspection_ = allow;
-}
-
-}  // namespace content