Laser tool blocks events from propagating.

ash/shell.cc

Index: ash/shell.cc
diff --git a/ash/shell.cc b/ash/shell.cc
index b3cdffcffd1f1bb66938f208ed62a017ccaaf1b4..12a0616c2c0b0031261db33d1e7b04e6b1ba1d4d 100644
--- a/ash/shell.cc
+++ b/ash/shell.cc
@@ -53,6 +53,7 @@
 #include "ash/high_contrast/high_contrast_controller.h"
 #include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/ime/input_method_event_handler.h"
+#include "ash/laser/laser_pointer_controller.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/magnifier/partial_magnification_controller.h"
 #include "ash/root_window_controller.h"
@@ -538,8 +539,13 @@ Shell::~Shell() {
   // These need a valid Shell instance to clean up properly, so explicitly
   // delete them before invalidating the instance.
   // Alphabetical. TODO(oshima): sort.
+#if defined(OS_CHROMEOS)

[James Cook, 2016/09/16 18:13:31]

ditto, unless the order really matters

[sammiequon, 2016/09/16 19:21:04]

Done.

+  laser_pointer_controller_.reset();
+#endif
   magnification_controller_.reset();
+#if defined(OS_CHROMEOS)
   partial_magnification_controller_.reset();

[James Cook, 2016/09/16 18:13:31]

optional: If partial_magnification_controller is giving you trouble, I wouldn't
mind waiting on it until the next CL.

[sammiequon, 2016/09/16 19:21:04]

I don't think it should give much troubles, I probably shouldn't have modified
any of it to begin with.

+#endif
   tooltip_controller_.reset();
   event_client_.reset();
   toplevel_window_event_handler_.reset();
@@ -783,10 +789,16 @@ void Shell::Init(const ShellInitParams& init_params) {
   // RootWindowController as possible.
   visibility_controller_.reset(new AshVisibilityController);
 
+#if defined(OS_CHROMEOS)
+  laser_pointer_controller_.reset(new LaserPointerController());
+#endif
+
   magnification_controller_.reset(MagnificationController::CreateInstance());
   wm_shell_->CreateMruWindowTracker();
 
+#if defined(OS_CHROMEOS)
   partial_magnification_controller_.reset(new PartialMagnificationController());
+#endif
 
   autoclick_controller_.reset(AutoclickController::CreateInstance());