Add Copy URL option to Omnibox context menu when URL is replaced by Instant Extended.

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm

Index: chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
index deb9b2d6ef362d65c0bd8b97d6b8273cd378325a..dc569f469eade2b898340f0e2bdeb0346ae83a59 100644
--- a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
+++ b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
@@ -96,6 +96,13 @@ BOOL ThePasteboardIsTooDamnBig() {
   [self delete:nil];
 }
 
+- (void)copyURL:(id)sender {
+  AutocompleteTextFieldObserver* observer = [self observer];
+  DCHECK(observer);
+  if (observer->CanCopy())
+    observer->CopyURLToPasteboard([NSPasteboard generalPasteboard]);
+}
+
 // This class assumes that the delegate is an AutocompleteTextField.
 // Enforce that assumption.
 - (AutocompleteTextField*)delegate {
@@ -208,6 +215,19 @@ BOOL ThePasteboardIsTooDamnBig() {
   [menu addItemWithTitle:l10n_util::GetNSStringWithFixup(IDS_COPY)
                   action:@selector(copy:)
            keyEquivalent:@""];
+
+  if ([self isEditable]) {
+    // Copy URL if the URL has been replaced by the Extended Instant API.
+    AutocompleteTextFieldObserver* observer = [self observer];
+    DCHECK(observer);
+    if (observer->ShouldAddCopyURL()) {
+      NSString* label = l10n_util::GetNSStringWithFixup(IDS_COPY_URL_MAC);
+      [menu addItemWithTitle:label
+                      action:@selector(copyURL:)
+               keyEquivalent:@""];
+    }
+  }
+
   [menu addItemWithTitle:l10n_util::GetNSStringWithFixup(IDS_PASTE)
                   action:@selector(paste:)
            keyEquivalent:@""];