Handle google drive token.

Use LoadResult auth header mechanism to pass auth token to pipeline as a header
instead of obsolete query string method.

src/internet/googledrive/googledriveclient.cpp

@@ -132,9 +132,12 @@ void Client::FetchUserInfoFinished(ConnectResponse* response,
   emit Authenticated();
 }
 
+QByteArray Client::GetAuthHeader() const {
+  return QString("Bearer %1").arg(access_token_).toUtf8();
+}
+
 void Client::AddAuthorizationHeader(QNetworkRequest* request) const {
-  request->setRawHeader("Authorization",
-                        QString("Bearer %1").arg(access_token_).toUtf8());
+  request->setRawHeader("Authorization", GetAuthHeader());
 }
 
 GetFileResponse* Client::GetFile(const QString& file_id) {

src/internet/googledrive/googledriveclient.h

@@ -149,6 +149,8 @@ class Client : public QObject {
   GetFileResponse* GetFile(const QString& file_id);
   ListChangesResponse* ListChanges(const QString& cursor);
 
+  QByteArray GetAuthHeader() const;
+
  signals:
   void Authenticated();
 

src/internet/googledrive/googledriveservice.cpp

@@ -209,11 +209,7 @@ QUrl GoogleDriveService::GetStreamingUrlFromSongId(const QString& id) {
     return QUrl();
   }
 
-  QUrl url(response->file().download_url());
-  QUrlQuery url_query(url);
-  url_query.addQueryItem("access_token", client_->access_token());
-  url.setQuery(url_query);
-  return url;
+  return QUrl(response->file().download_url());
 }
 
 void GoogleDriveService::ShowContextMenu(const QPoint& global_pos) {

src/internet/googledrive/googledriveurlhandler.cpp

@@ -18,6 +18,7 @@
 
 #include "googledriveurlhandler.h"
 
+#include "googledriveclient.h"
 #include "googledriveservice.h"
 
 GoogleDriveUrlHandler::GoogleDriveUrlHandler(GoogleDriveService* service,
@@ -29,5 +30,7 @@ UrlHandler::LoadResult GoogleDriveUrlHandler::StartLoading(const QUrl& url) {
   QUrl real_url = service_->GetStreamingUrlFromSongId(file_id);
   LoadResult::Type type = real_url.isValid() ? LoadResult::TrackAvailable
                                              : LoadResult::NoMoreTracks;
-  return LoadResult(url, type, real_url);
+  LoadResult res(url, type, real_url);
+  res.auth_header_ = service_->client()->GetAuthHeader();
+  return res;
 }