[Mac] Fix operation of Control key in Omnibox.

chrome/browser/autocomplete/autocomplete_edit_view_mac.mm

Index: chrome/browser/autocomplete/autocomplete_edit_view_mac.mm
diff --git a/chrome/browser/autocomplete/autocomplete_edit_view_mac.mm b/chrome/browser/autocomplete/autocomplete_edit_view_mac.mm
index f49963a13ffcd07ff2b36966419f9139bfc66114..5a53473b1ad8678208fd50b8e0cab7e4964c2e22 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view_mac.mm
+++ b/chrome/browser/autocomplete/autocomplete_edit_view_mac.mm
@@ -573,10 +573,8 @@ void AutocompleteEditViewMac::OnWillBeginEditing() {
   // We should only arrive here when the field is focussed.
   DCHECK([field_ currentEditor]);
 
-  // TODO(shess): Detect control-key situation.  Since this code is
-  // called on first edit, not on receipt of focus, it may be that we
-  // cannot correctly handle this without refactoring.
-  const bool controlDown = false;
+  NSEvent* theEvent = [NSApp currentEvent];
+  const bool controlDown = ([theEvent modifierFlags]&NSControlKeyMask) != 0;
   model_->OnSetFocus(controlDown);
 
   // Capture the current state.
@@ -847,7 +845,7 @@ std::wstring AutocompleteEditViewMac::GetClipboardText(Clipboard* clipboard) {
 // the popup to reflect this.  See autocomplete_edit.cc
 // OnControlKeyChanged() and OnAfterPossibleChange().
 - (void)control:(NSControl*)control flagsChanged:(NSEvent*)theEvent {
-  BOOL controlFlag = ([theEvent modifierFlags]&NSControlKeyMask) != 0;
+  bool controlFlag = ([theEvent modifierFlags]&NSControlKeyMask) != 0;
   edit_view_->OnControlKeyChanged(controlFlag);
 }