Ignore inserting character with Search as a modifier on ChromeOS

ui/events/base_event_utils.cc

Index: ui/events/base_event_utils.cc
diff --git a/ui/events/base_event_utils.cc b/ui/events/base_event_utils.cc
index 313a37cb15c876f5d51d4eee920c3ced806182b5..30854bc90b31134540098fa3b9f2b30448acca1f 100644
--- a/ui/events/base_event_utils.cc
+++ b/ui/events/base_event_utils.cc
@@ -6,9 +6,21 @@
 
 #include "base/atomic_sequence_num.h"
 #include "base/logging.h"
+#include "ui/events/event_constants.h"
 
 namespace ui {
 
+namespace {
+
+#if defined(OS_CHROMEOS)
+const int kSystemKeyModifierMask = EF_ALT_DOWN | EF_COMMAND_DOWN;
+#else
+const int kSystemKeyModifierMask = EF_ALT_DOWN;
+#endif  // defined(OS_CHROMEOS)
+
+
+}  // namespace
+
 base::StaticAtomicSequenceNumber g_next_event_id;
 
 uint32 GetNextTouchEventId() {
@@ -21,5 +33,9 @@ uint32 GetNextTouchEventId() {
   return id;
 }
 
+bool IsSystemKeyModifier(int flags) {
+  return (kSystemKeyModifierMask & flags) != 0;
+}
+
 }  // namespace ui