Revert of Handle media access permission request

android_webview/native/permission/permission_request_handler.cc

-// Copyright 2014 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 "android_webview/native/permission/permission_request_handler.h"
-
-#include "android_webview/native/permission/aw_permission_request.h"
-#include "android_webview/native/permission/aw_permission_request_delegate.h"
-#include "android_webview/native/permission/permission_request_handler_client.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/bind.h"
-
-using base::android::ScopedJavaLocalRef;
-
-namespace android_webview {
-
-PermissionRequestHandler::PermissionRequestHandler(
-    PermissionRequestHandlerClient* client)
-    : client_(client) {
-}
-
-PermissionRequestHandler::~PermissionRequestHandler() {
-  for (RequestIterator i = requests_.begin(); i != requests_.end(); ++i)
-    CancelRequest(i);
-}
-
-void PermissionRequestHandler::SendRequest(
-    scoped_ptr<AwPermissionRequestDelegate> request) {
-  AwPermissionRequest* aw_request = new AwPermissionRequest(request.Pass());
-  requests_.push_back(
-      base::WeakPtr<AwPermissionRequest>(aw_request->GetWeakPtr()));
-  client_->OnPermissionRequest(aw_request);
-  PruneRequests();
-}
-
-void PermissionRequestHandler::CancelRequest(const GURL& origin,
-                                             int64 resources) {
-  // The request list might have multiple requests with same origin and
-  // resources.
-  RequestIterator i = FindRequest(origin, resources);
-  while (i != requests_.end()) {
-    CancelRequest(i);
-    requests_.erase(i);
-    i = FindRequest(origin, resources);
-  }
-}
-
-PermissionRequestHandler::RequestIterator
-PermissionRequestHandler::FindRequest(const GURL& origin,
-                                      int64 resources) {
-  RequestIterator i;
-  for (i = requests_.begin(); i != requests_.end(); ++i) {
-    if (i->get() && i->get()->GetOrigin() == origin &&
-        i->get()->GetResources() == resources) {
-      break;
-    }
-  }
-  return i;
-}
-
-void PermissionRequestHandler::CancelRequest(RequestIterator i) {
-  if (i->get())
-    client_->OnPermissionRequestCanceled(i->get());
-  // The request's grant()/deny() could be called upon
-  // OnPermissionRequestCanceled. Delete AwPermissionRequest if it still
-  // exists.
-  if (i->get())
-    delete i->get();
-}
-
-void PermissionRequestHandler::PruneRequests() {
-  for (RequestIterator i = requests_.begin(); i != requests_.end();) {
-    if (!i->get())
-      i = requests_.erase(i);
-    else
-      ++i;
-  }
-}
-
-}  // namespace android_webivew