[Presentation API] Adding a flag to disable gesture check for starting presentations

third_party/WebKit/Source/web/WebSettingsImpl.cpp

Index: third_party/WebKit/Source/web/WebSettingsImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebSettingsImpl.cpp b/third_party/WebKit/Source/web/WebSettingsImpl.cpp
index 737f0881ddadfba5e935fa144d9be3773e79c213..a7e348cb3e6acbd29b9a6eb92ff6b9d9dba53382 100644
--- a/third_party/WebKit/Source/web/WebSettingsImpl.cpp
+++ b/third_party/WebKit/Source/web/WebSettingsImpl.cpp
@@ -717,6 +717,11 @@ void WebSettingsImpl::setMediaPlaybackRequiresUserGesture(bool required)
     m_settings->setMediaPlaybackRequiresUserGesture(required);
 }
 
+void WebSettingsImpl::setPresentationRequiresUserGesture(bool required)
+{
+    m_settings->setPresentationRequiresUserGesture(required);
+}
+
 void WebSettingsImpl::setViewportEnabled(bool enabled)
 {
     m_settings->setViewportEnabled(enabled);