Adding WebRTC logging filter, handler and handler host.

content/renderer/webrtc_logging_handler_impl.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/renderer/webrtc_logging_handler_impl.h"
+
+#include "base/logging.h"
+#include "base/message_loop_proxy.h"
+#include "content/renderer/webrtc_logging_message_filter.h"
+
+namespace content {
+
+WebRtcLoggingHandlerImpl::WebRtcLoggingHandlerImpl(
+    const scoped_refptr<WebRtcLoggingMessageFilter>& message_filter,
+    const scoped_refptr<base::MessageLoopProxy>& io_message_loop)
+    : message_filter_(message_filter),
+      io_message_loop_(io_message_loop) {
+}
+
+WebRtcLoggingHandlerImpl::~WebRtcLoggingHandlerImpl() {
+}
+
+void WebRtcLoggingHandlerImpl::OnFilterRemoved() {
+  message_filter_ = NULL;
+}
+
+void WebRtcLoggingHandlerImpl::OpenLog() {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  // TODO(grunell): Check if already opened. (Could have been opened by another
+  // render view.)
+  if (message_filter_)
+    message_filter_->OpenLog();
+}
+
+void WebRtcLoggingHandlerImpl::OnLogOpened(
+    base::SharedMemoryHandle handle,
+    uint32 length) {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  // TODO(grunell): Implement.
+  NOTIMPLEMENTED();
+}
+
+void WebRtcLoggingHandlerImpl::OnOpenLogFailed() {
+  DCHECK(io_message_loop_->BelongsToCurrentThread());
+  DLOG(ERROR) << "Could not open log.";
+  // TODO(grunell): Implement.
+  NOTIMPLEMENTED();
+}
+
+}  // namespace content