Revert "Converting (Alt+LeftClick -> RightClick) to (Search+LeftClick -> RightClick)"

chrome/browser/chromeos/events/event_rewriter.cc

Index: chrome/browser/chromeos/events/event_rewriter.cc
diff --git a/chrome/browser/chromeos/events/event_rewriter.cc b/chrome/browser/chromeos/events/event_rewriter.cc
index 05a7b9c6a4f5145b598b9d0b68e4f0df8cf6adb4..4d75023c76cd46f35164b674c5ed2466654d835f 100644
--- a/chrome/browser/chromeos/events/event_rewriter.cc
+++ b/chrome/browser/chromeos/events/event_rewriter.cc
@@ -898,13 +898,12 @@ void EventRewriter::RewriteLocatedEvent(const ui::Event& event,
 
 int EventRewriter::RewriteModifierClick(const ui::MouseEvent& mouse_event,
                                         int* flags) {
-  // Remap Search+Button1 to Button3.
-  const int kSearchLeftButton =
-      (ui::EF_COMMAND_DOWN | ui::EF_LEFT_MOUSE_BUTTON);
-  if (((*flags & kSearchLeftButton) == kSearchLeftButton) &&
+  // Remap Alt+Button1 to Button3.
+  const int kAltLeftButton = (ui::EF_ALT_DOWN | ui::EF_LEFT_MOUSE_BUTTON);
+  if (((*flags & kAltLeftButton) == kAltLeftButton) &&
       ((mouse_event.type() == ui::ET_MOUSE_PRESSED) ||
        pressed_device_ids_.count(mouse_event.source_device_id()))) {
-    *flags &= ~kSearchLeftButton;
+    *flags &= ~kAltLeftButton;
     *flags |= ui::EF_RIGHT_MOUSE_BUTTON;
     if (mouse_event.type() == ui::ET_MOUSE_PRESSED)
       pressed_device_ids_.insert(mouse_event.source_device_id());