[Mac] Expose AutocompleteEditViewMac to Cocoa code.

chrome/browser/cocoa/autocomplete_text_field.mm

Index: chrome/browser/cocoa/autocomplete_text_field.mm
diff --git a/chrome/browser/cocoa/autocomplete_text_field.mm b/chrome/browser/cocoa/autocomplete_text_field.mm
index 9c3e5939e85e3da9d2ab7f1b70e4c3e9e6b413a6..efc114a26d575ed90edbbb6183806df4cbdf905b 100644
--- a/chrome/browser/cocoa/autocomplete_text_field.mm
+++ b/chrome/browser/cocoa/autocomplete_text_field.mm
@@ -9,6 +9,8 @@
 
 @implementation AutocompleteTextField
 
+@synthesize observer = observer_;
+
 + (Class)cellClass {
   return [AutocompleteTextFieldCell class];
 }
@@ -17,14 +19,6 @@
   DCHECK([[self cell] isKindOfClass:[AutocompleteTextFieldCell class]]);
 }
 
-- (BOOL)textShouldPaste:(NSText*)fieldEditor {
-  id delegate = [self delegate];
-  if ([delegate respondsToSelector:@selector(control:textShouldPaste:)]) {
-    return [delegate control:self textShouldPaste:fieldEditor];
-  }
-  return YES;
-}
-
 - (NSString*)textPasteActionString:(NSText*)fieldEditor {
   id delegate = [self delegate];
   if ([delegate respondsToSelector:@selector(control:textPasteActionString:)]) {
@@ -41,11 +35,8 @@
 }
 
 - (void)flagsChanged:(NSEvent*)theEvent {
-  id delegate = [self delegate];
-  if ([delegate respondsToSelector:@selector(control:flagsChanged:)]) {
-    [delegate control:self flagsChanged:theEvent];
-  }
-  [super flagsChanged:theEvent];
+  bool controlFlag = ([theEvent modifierFlags]&NSControlKeyMask) != 0;
+  observer_->OnControlKeyChanged(controlFlag);
 }
 
 - (AutocompleteTextFieldCell*)autocompleteTextFieldCell {