Fix auto raw pointer deduction on linux

remoting/host/host_extension_session_manager.cc

Index: remoting/host/host_extension_session_manager.cc
diff --git a/remoting/host/host_extension_session_manager.cc b/remoting/host/host_extension_session_manager.cc
index ac06b4fc20b505bee51ab43d6ee3f0bc12caeffe..07f0a1effe09a5a60ce11aef332baa0e3ab0b6b2 100644
--- a/remoting/host/host_extension_session_manager.cc
+++ b/remoting/host/host_extension_session_manager.cc
@@ -23,7 +23,7 @@ HostExtensionSessionManager::~HostExtensionSessionManager() {}
 
 std::string HostExtensionSessionManager::GetCapabilities() const {
   std::string capabilities;
-  for (const auto& extension : extensions_) {
+  for (auto* extension : extensions_) {
     const std::string& capability = extension->capability();
     if (capability.empty()) {
       continue;
@@ -44,7 +44,7 @@ void HostExtensionSessionManager::OnNegotiatedCapabilities(
 
   client_stub_ = client_stub;
 
-  for (const auto& extension : extensions_) {
+  for (auto* extension : extensions_) {
     // If the extension requires a capability that was not negotiated then do
     // not instantiate it.
     if (!extension->capability().empty() &&