[Mac] Implement Paste and Go/Search.

chrome/browser/cocoa/autocomplete_text_field.mm

Index: chrome/browser/cocoa/autocomplete_text_field.mm
===================================================================
--- chrome/browser/cocoa/autocomplete_text_field.mm	(revision 26600)
+++ chrome/browser/cocoa/autocomplete_text_field.mm	(working copy)
@@ -25,6 +25,21 @@
   return YES;
 }
 
+- (NSString*)textPasteActionString:(NSText*)fieldEditor {
+  id delegate = [self delegate];
+  if ([delegate respondsToSelector:@selector(control:textPasteActionString:)]) {
+    return [delegate control:self textPasteActionString:fieldEditor];
+  }
+  return nil;
+}
+
+- (void)textDidPasteAndGo:(NSText*)fieldEditor {
+  id delegate = [self delegate];
+  if ([delegate respondsToSelector:@selector(control:textDidPasteAndGo:)]) {
+    [delegate control:self textDidPasteAndGo:fieldEditor];
+  }
+}
+
 - (void)flagsChanged:(NSEvent*)theEvent {
   id delegate = [self delegate];
   if ([delegate respondsToSelector:@selector(control:flagsChanged:)]) {