Touch Events capability negotiation

remoting/host/basic_desktop_environment.cc

Index: remoting/host/basic_desktop_environment.cc
diff --git a/remoting/host/basic_desktop_environment.cc b/remoting/host/basic_desktop_environment.cc
index e7132f655782431684c9dd69086d5ef2ccd6a42a..866833740be7c2012455b0071eef0b5bf4c601bc 100644
--- a/remoting/host/basic_desktop_environment.cc
+++ b/remoting/host/basic_desktop_environment.cc
@@ -16,6 +16,7 @@
 #include "remoting/host/gnubby_auth_handler.h"
 #include "remoting/host/input_injector.h"
 #include "remoting/host/screen_controls.h"
+#include "remoting/protocol/capability_names.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "third_party/webrtc/modules/desktop_capture/mouse_cursor_monitor.h"
 #include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
@@ -55,6 +56,9 @@ BasicDesktopEnvironment::CreateMouseCursorMonitor() {
 }
 
 std::string BasicDesktopEnvironment::GetCapabilities() const {
+  if (supports_touch_events_)
+    return protocol::kTouchEventsCapability;
+
   return std::string();
 }
 
@@ -89,7 +93,8 @@ BasicDesktopEnvironment::BasicDesktopEnvironment(
       ui_task_runner_(ui_task_runner),
       desktop_capture_options_(
           new webrtc::DesktopCaptureOptions(
-              webrtc::DesktopCaptureOptions::CreateDefault())) {
+              webrtc::DesktopCaptureOptions::CreateDefault())),
+      supports_touch_events_(false) {
   DCHECK(caller_task_runner_->BelongsToCurrentThread());
 }
 
@@ -99,7 +104,8 @@ BasicDesktopEnvironmentFactory::BasicDesktopEnvironmentFactory(
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner)
     : caller_task_runner_(caller_task_runner),
       input_task_runner_(input_task_runner),
-      ui_task_runner_(ui_task_runner) {
+      ui_task_runner_(ui_task_runner),
+      supports_touch_events_(false) {
 }
 
 BasicDesktopEnvironmentFactory::~BasicDesktopEnvironmentFactory() {