[cast_channel] Make cast_channel related files not depend on "cast_channel.h"

extensions/browser/api/cast_channel/cast_channel_api.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 "extensions/browser/api/cast_channel/cast_channel_api.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "content/public/browser/browser_thread.h"
+#include "extensions/browser/api/cast_channel/cast_channel_type_util.h"
 #include "extensions/browser/api/cast_channel/cast_message_util.h"
 #include "extensions/browser/api/cast_channel/cast_socket.h"
 #include "extensions/browser/api/cast_channel/keep_alive_delegate.h"
 #include "extensions/browser/api/cast_channel/logger.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/common/api/cast_channel/cast_channel.pb.h"
 #include "extensions/common/api/cast_channel/logging.pb.h"
 #include "net/base/ip_address.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 
 // Default timeout interval for connection setup.
 // Used if not otherwise specified at ConnectInfo::timeout.
 const int kDefaultConnectTimeoutMillis = 5000;  // 5 seconds.
 
 namespace extensions {
 
 namespace Close = cast_channel::Close;
 namespace OnError = cast_channel::OnError;
 namespace OnMessage = cast_channel::OnMessage;
 namespace Open = cast_channel::Open;
 namespace Send = cast_channel::Send;
+using ::cast_channel::ChannelError;
 using cast_channel::CastDeviceCapability;
 using cast_channel::CastMessage;
 using cast_channel::CastSocket;
-using cast_channel::ChannelAuthType;
-using cast_channel::ChannelError;
+using cast_channel::CastSocketImpl;
+using cast_channel::CastTransport;
 using cast_channel::ChannelInfo;
 using cast_channel::ConnectInfo;
 using cast_channel::ErrorInfo;
+using cast_channel::KeepAliveDelegate;
 using cast_channel::LastErrors;
 using cast_channel::Logger;
 using cast_channel::MessageInfo;
-using cast_channel::ReadyState;
 using content::BrowserThread;
 
 namespace {
 
 // T is an extension dictionary (MessageInfo or ChannelInfo)
 template <class T>
 std::string ParamToString(const T& info) {
   std::unique_ptr<base::DictionaryValue> dict = info.ToValue();
   std::string out;
   base::JSONWriter::Write(*dict, &out);
   return out;
 }
 
 // Fills |channel_info| from the destination and state of |socket|.
 void FillChannelInfo(const CastSocket& socket, ChannelInfo* channel_info) {
   DCHECK(channel_info);
   channel_info->channel_id = socket.id();
   const net::IPEndPoint& ip_endpoint = socket.ip_endpoint();
   channel_info->connect_info.ip_address = ip_endpoint.ToStringWithoutPort();
   channel_info->connect_info.port = ip_endpoint.port();
-  channel_info->connect_info.auth = socket.channel_auth();
-  channel_info->ready_state = socket.ready_state();
-  channel_info->error_state = socket.error_state();
+  channel_info->connect_info.auth =
+      cast_channel::ToChannelAuthType(socket.channel_auth());
+  channel_info->ready_state = cast_channel::ToReadyState(socket.ready_state());
+  channel_info->error_state =
+      cast_channel::ToChannelError(socket.error_state());
   channel_info->keep_alive = socket.keep_alive();
   channel_info->audio_only = socket.audio_only();
 }
 
 // Fills |error_info| from |error_state| and |last_errors|.
-void FillErrorInfo(ChannelError error_state,
+void FillErrorInfo(cast_channel::ChannelError error_state,
                    const LastErrors& last_errors,
                    ErrorInfo* error_info) {
   error_info->error_state = error_state;
   if (last_errors.event_type != cast_channel::proto::EVENT_TYPE_UNKNOWN)
     error_info->event_type.reset(new int(last_errors.event_type));
   if (last_errors.challenge_reply_error_type !=
       cast_channel::proto::CHALLENGE_REPLY_ERROR_NONE) {
     error_info->challenge_reply_error_type.reset(
         new int(last_errors.challenge_reply_error_type));
   }
@@ skipping 107 matching lines @@
 
 void CastChannelAsyncApiFunction::RemoveSocket(int channel_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   sockets_->Remove(extension_->id(), channel_id);
 }
 
 void CastChannelAsyncApiFunction::SetResultFromSocket(
     const CastSocket& socket) {
   ChannelInfo channel_info;
   FillChannelInfo(socket, &channel_info);
-  ChannelError error = socket.error_state();
+  cast_channel::ChannelError error =
+      cast_channel::ToChannelError(socket.error_state());
   if (error != cast_channel::CHANNEL_ERROR_NONE) {
     SetError("Channel socket error = " + base::IntToString(error));
   }
   SetResultFromChannelInfo(channel_info);
 }
 
-void CastChannelAsyncApiFunction::SetResultFromError(int channel_id,
-                                                     ChannelError error) {
+void CastChannelAsyncApiFunction::SetResultFromError(
+    int channel_id,
+    cast_channel::ChannelError error) {
   ChannelInfo channel_info;
   channel_info.channel_id = channel_id;
   channel_info.ready_state = cast_channel::READY_STATE_CLOSED;
   channel_info.error_state = error;
   channel_info.connect_info.ip_address = "";
   channel_info.connect_info.port = 0;
   channel_info.connect_info.auth = cast_channel::CHANNEL_AUTH_TYPE_SSL_VERIFIED;
   SetResultFromChannelInfo(channel_info);
   SetError("Channel error = " + base::IntToString(error));
 }
@@ skipping 70 matching lines @@
 
 void CastChannelOpenFunction::AsyncWorkStart() {
   DCHECK(api_);
   DCHECK(ip_endpoint_.get());
   const ConnectInfo& connect_info = params_->connect_info;
   CastSocket* socket;
   std::unique_ptr<CastSocket> test_socket = api_->GetSocketForTest();
   if (test_socket.get()) {
     socket = test_socket.release();
   } else {
-    socket = new cast_channel::CastSocketImpl(
-        extension_->id(), *ip_endpoint_, channel_auth_,
+    socket = new CastSocketImpl(
+        extension_->id(), *ip_endpoint_,
+        cast_channel::ToChannelAuthTypeInternal(channel_auth_),

[imcheng, 2017/05/24 22:11:23]

Instead of this, can you just use ToChannelAuthType() when setting channel_auth_
above?

[zhaobin, 2017/05/25 00:49:23]

Done.

         ExtensionsBrowserClient::Get()->GetNetLog(),
         base::TimeDelta::FromMilliseconds(connect_info.timeout.get()
                                               ? *connect_info.timeout
                                               : kDefaultConnectTimeoutMillis),
         liveness_timeout_ > base::TimeDelta(), api_->GetLogger(),
         connect_info.capabilities.get() ? *connect_info.capabilities
                                         : CastDeviceCapability::NONE);
   }
   new_channel_id_ = AddSocket(socket);
 
   // Construct read delegates.
-  std::unique_ptr<api::cast_channel::CastTransport::Delegate> delegate(
+  std::unique_ptr<CastTransport::Delegate> delegate(
       base::MakeUnique<CastMessageHandler>(
           base::Bind(&CastChannelAPI::SendEvent, api_->AsWeakPtr()), socket,
           api_->GetLogger()));
   if (socket->keep_alive()) {
     // Wrap read delegate in a KeepAliveDelegate for timeout handling.
-    api::cast_channel::KeepAliveDelegate* keep_alive =
-        new api::cast_channel::KeepAliveDelegate(
-            socket, api_->GetLogger(), std::move(delegate), ping_interval_,
-            liveness_timeout_);
+    KeepAliveDelegate* keep_alive =
+        new KeepAliveDelegate(socket, api_->GetLogger(), std::move(delegate),
+                              ping_interval_, liveness_timeout_);
     std::unique_ptr<base::Timer> injected_timer =
         api_->GetInjectedTimeoutTimerForTest();
     if (injected_timer) {
       keep_alive->SetTimersForTest(base::MakeUnique<base::Timer>(false, false),
                                    std::move(injected_timer));
     }
     delegate.reset(keep_alive);
   }
 
   socket->Connect(std::move(delegate),
                   base::Bind(&CastChannelOpenFunction::OnOpen, this));
 }
 
-void CastChannelOpenFunction::OnOpen(cast_channel::ChannelError result) {
+void CastChannelOpenFunction::OnOpen(ChannelError result) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   VLOG(1) << "Connect finished, OnOpen invoked.";
   // TODO: If we failed to open the CastSocket, we may want to clean up here,
   // rather than relying on the extension to call close(). This can be done by
   // calling RemoveSocket() and api_->GetLogger()->ClearLastErrors(channel_id).
-  if (result != cast_channel::CHANNEL_ERROR_UNKNOWN) {
+  if (result != ChannelError::UNKNOWN) {
     CastSocket* socket = GetSocket(new_channel_id_);
     CHECK(socket);
     SetResultFromSocket(*socket);
   } else {
     // The socket is being destroyed.
-    SetResultFromError(new_channel_id_, result);
+    SetResultFromError(new_channel_id_, cast_channel::CHANNEL_ERROR_UNKNOWN);
   }
 
   AsyncWorkCompleted();
 }
 
 CastChannelSendFunction::CastChannelSendFunction() { }
 
 CastChannelSendFunction::~CastChannelSendFunction() { }
 
 bool CastChannelSendFunction::Prepare() {
@@ skipping 92 matching lines @@
     SetResultFromSocket(*socket);
     // This will delete |socket|.
     RemoveSocket(channel_id);
     api_->GetLogger()->ClearLastErrors(channel_id);
   }
   AsyncWorkCompleted();
 }
 
 CastChannelOpenFunction::CastMessageHandler::CastMessageHandler(
     const EventDispatchCallback& ui_dispatch_cb,
-    cast_channel::CastSocket* socket,
+    CastSocket* socket,
     scoped_refptr<Logger> logger)
     : ui_dispatch_cb_(ui_dispatch_cb), socket_(socket), logger_(logger) {
   DCHECK(socket_);
   DCHECK(logger_);
 }
 
 CastChannelOpenFunction::CastMessageHandler::~CastMessageHandler() {
 }
 
 void CastChannelOpenFunction::CastMessageHandler::OnError(
-    cast_channel::ChannelError error_state) {
+    ChannelError error_state) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   ChannelInfo channel_info;
   FillChannelInfo(*socket_, &channel_info);
-  channel_info.error_state = error_state;
+  channel_info.error_state = cast_channel::ToChannelError(error_state);
   ErrorInfo error_info;
-  FillErrorInfo(error_state, logger_->GetLastErrors(socket_->id()),
+  FillErrorInfo(channel_info.error_state, logger_->GetLastErrors(socket_->id()),
                 &error_info);
 
   std::unique_ptr<base::ListValue> results =
       OnError::Create(channel_info, error_info);
   std::unique_ptr<Event> event(new Event(
       events::CAST_CHANNEL_ON_ERROR, OnError::kEventName, std::move(results)));
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(ui_dispatch_cb_, socket_->owner_extension_id(),
                  base::Passed(std::move(event))));
 }
 
 void CastChannelOpenFunction::CastMessageHandler::OnMessage(
     const CastMessage& message) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   MessageInfo message_info;
-  cast_channel::CastMessageToMessageInfo(message, &message_info);
+  CastMessageToMessageInfo(message, &message_info);
   ChannelInfo channel_info;
   FillChannelInfo(*socket_, &channel_info);
   VLOG(1) << "Received message " << ParamToString(message_info)
           << " on channel " << ParamToString(channel_info);
 
   std::unique_ptr<base::ListValue> results =
       OnMessage::Create(channel_info, message_info);
   std::unique_ptr<Event> event(new Event(events::CAST_CHANNEL_ON_MESSAGE,
                                          OnMessage::kEventName,
                                          std::move(results)));
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(ui_dispatch_cb_, socket_->owner_extension_id(),
                  base::Passed(std::move(event))));
 }
 
 void CastChannelOpenFunction::CastMessageHandler::Start() {
 }
 
 }  // namespace extensions