Add WM_EVENT_TRUSTED_PIN and WINDOW_STATE_TYPE_TRUSTED_PINNED to Ash.

components/exo/shell_surface.cc

Index: components/exo/shell_surface.cc
diff --git a/components/exo/shell_surface.cc b/components/exo/shell_surface.cc
index da62c7779a4c368ccc8d44496f9e886dbb619026..f8957e9529efe2af78b52c83b7c18748fcd4af8f 100644
--- a/components/exo/shell_surface.cc
+++ b/components/exo/shell_surface.cc
@@ -404,7 +404,7 @@ void ShellSurface::SetFullscreen(bool fullscreen) {
   UpdateShelfStateForFullscreenChange(widget_);
 }
 
-void ShellSurface::SetPinned(bool pinned) {
+void ShellSurface::SetPinned(bool pinned, bool trusted) {
   TRACE_EVENT1("exo", "ShellSurface::SetPinned", "pinned", pinned);

[reveman, 2016/08/26 12:44:29]

nit: add trusted flag to trace event

[hirono, 2016/08/29 00:24:51]

Done.

 
   if (!widget_)
@@ -414,7 +414,7 @@ void ShellSurface::SetPinned(bool pinned) {
   // state doesn't change.
   ScopedConfigure scoped_configure(this, true);
   if (pinned) {
-    ash::wm::PinWindow(widget_->GetNativeWindow());
+    ash::wm::PinWindow(widget_->GetNativeWindow(), trusted);
   } else {
     // At the moment, we cannot just unpin the window state, due to ash
     // implementation. Instead, we call Restore() to unpin, if it is Pinned