Revert 161386 - Ignore certain keys when hiding the cursor

ui/aura/shared/compound_event_filter.cc

Index: ui/aura/shared/compound_event_filter.cc
===================================================================
--- ui/aura/shared/compound_event_filter.cc	(revision 161397)
+++ ui/aura/shared/compound_event_filter.cc	(working copy)
@@ -4,7 +4,6 @@
 
 #include "ui/aura/shared/compound_event_filter.h"
 
-#include "base/hash_tables.h"
 #include "ui/aura/client/activation_client.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/drag_drop_client.h"
@@ -33,50 +32,6 @@
       GetActiveWindow();
 }
 
-bool ShouldHideCursorOnKeyEvent(const ui::KeyEvent& event) {
-  // All alt and control key commands are ignored.
-  if (event.IsAltDown() || event.IsControlDown())
-    return false;
-
-  static bool inited = false;
-  static base::hash_set<int32> ignored_keys;
-  if (!inited) {
-    // Modifiers.
-    ignored_keys.insert(ui::VKEY_SHIFT);
-    ignored_keys.insert(ui::VKEY_CONTROL);
-    ignored_keys.insert(ui::VKEY_MENU);
-
-    // Search key == VKEY_LWIN.
-    ignored_keys.insert(ui::VKEY_LWIN);
-
-    // Function keys.
-    for (int key = ui::VKEY_F1; key <= ui::VKEY_F24; ++key)
-      ignored_keys.insert(key);
-
-    // Media keys.
-    for (int key = ui::VKEY_BROWSER_BACK; key <= ui::VKEY_MEDIA_LAUNCH_APP2;
-         ++key) {
-      ignored_keys.insert(key);
-    }
-    ignored_keys.insert(ui::VKEY_WLAN);
-    ignored_keys.insert(ui::VKEY_BRIGHTNESS_DOWN);
-    ignored_keys.insert(ui::VKEY_BRIGHTNESS_UP);
-    ignored_keys.insert(ui::VKEY_KBD_BRIGHTNESS_DOWN);
-    ignored_keys.insert(ui::VKEY_KBD_BRIGHTNESS_UP);
-
-#if defined(OS_POSIX)
-    ignored_keys.insert(ui::VKEY_POWER);
-#endif
-
-    inited = true;
-  }
-
-  if (ignored_keys.count(event.key_code()) > 0)
-    return false;
-
-  return true;
-}
-
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -209,11 +164,8 @@
 // CompoundEventFilter, ui::EventHandler implementation:
 
 ui::EventResult CompoundEventFilter::OnKeyEvent(ui::KeyEvent* event) {
-  if (ShouldHideCursorOnKeyEvent(*event)) {
-    SetCursorVisibilityOnEvent(
-        static_cast<Window*>(event->target()), event, false);
-  }
-
+  SetCursorVisibilityOnEvent(
+      static_cast<Window*>(event->target()), event, false);
   return FilterKeyEvent(event);
 }