Touch Events capability negotiation

remoting/host/desktop_session_proxy.cc

Index: remoting/host/desktop_session_proxy.cc
diff --git a/remoting/host/desktop_session_proxy.cc b/remoting/host/desktop_session_proxy.cc
index 7d1fc7e4f0ecd63a1802e427d059152c768306e6..1d6a1d09d6de6185eb3982de9ab14d5baa8f8869 100644
--- a/remoting/host/desktop_session_proxy.cc
+++ b/remoting/host/desktop_session_proxy.cc
@@ -24,6 +24,7 @@
 #include "remoting/proto/audio.pb.h"
 #include "remoting/proto/control.pb.h"
 #include "remoting/proto/event.pb.h"
+#include "remoting/protocol/capability_names.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
 #include "third_party/webrtc/modules/desktop_capture/mouse_cursor.h"
@@ -34,8 +35,6 @@
 #endif  // defined(OS_WIN)
 
 const bool kReadOnly = true;
-const char kSendInitialResolution[] = "sendInitialResolution";
-const char kRateLimitResizeRequests[] = "rateLimitResizeRequests";
 
 namespace remoting {
 
@@ -107,7 +106,8 @@ DesktopSessionProxy::DesktopSessionProxy(
     scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
     base::WeakPtr<ClientSessionControl> client_session_control,
     base::WeakPtr<DesktopSessionConnector> desktop_session_connector,
-    bool virtual_terminal)
+    bool virtual_terminal,
+    bool supports_touch_events)
     : audio_capture_task_runner_(audio_capture_task_runner),
       caller_task_runner_(caller_task_runner),
       io_task_runner_(io_task_runner),
@@ -116,7 +116,8 @@ DesktopSessionProxy::DesktopSessionProxy(
       desktop_session_connector_(desktop_session_connector),
       pending_capture_frame_requests_(0),
       is_desktop_session_connected_(false),
-      virtual_terminal_(virtual_terminal) {
+      virtual_terminal_(virtual_terminal),
+      supports_touch_events_(supports_touch_events) {
   DCHECK(caller_task_runner_->BelongsToCurrentThread());
 }
 
@@ -150,10 +151,14 @@ scoped_ptr<webrtc::MouseCursorMonitor>
 }
 
 std::string DesktopSessionProxy::GetCapabilities() const {
-  std::string result = kRateLimitResizeRequests;
+  std::string result = protocol::kRateLimitResizeRequests;
   // Ask the client to send its resolution unconditionally.
   if (virtual_terminal_)
-    result = result + " " + kSendInitialResolution;
+    result = result + " " + protocol::kSendInitialResolution;
+
+  if (supports_touch_events_)
+    result = result + " "  + protocol::kTouchEventsCapability;
+
   return result;
 }
 
@@ -164,7 +169,7 @@ void DesktopSessionProxy::SetCapabilities(const std::string& capabilities) {
   // sent its screen resolution (the 'sendInitialResolution' capability is
   // supported).
   if (virtual_terminal_ &&
-      HasCapability(capabilities, kSendInitialResolution)) {
+      HasCapability(capabilities, protocol::kSendInitialResolution)) {
     VLOG(1) << "Waiting for the client screen resolution.";
     return;
   }