Disable click to select all for search terms

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h"
 
 #include <Carbon/Carbon.h>  // kVK_Return
 
 #include "base/mac/foundation_util.h"
 #include "base/strings/string_util.h"
@@ skipping 757 matching lines @@
 }
 
 void OmniboxViewMac::OnMouseDown(NSInteger button_number) {
   // Restore caret visibility whenever the user clicks in the the omnibox. This
   // is not always covered by OnSetFocus() because when clicking while the
   // omnibox has invisible focus does not trigger a new OnSetFocus() call.
   if (button_number == 0 || button_number == 1)
     model()->SetCaretVisibility(true);
 }
 
+bool OmniboxViewMac::ShouldSelectAllOnMouseDown() {
+  return !controller()->GetToolbarModel()->WouldPerformSearchTermReplacement(
+      false);
+}
+
 bool OmniboxViewMac::CanCopy() {
   const NSRange selection = GetSelectedRange();
   return selection.length > 0;
 }
 
 void OmniboxViewMac::CopyToPasteboard(NSPasteboard* pb) {
   DCHECK(CanCopy());
 
   const NSRange selection = GetSelectedRange();
   string16 text = base::SysNSStringToUTF16(
@@ skipping 148 matching lines @@
 
 NSUInteger OmniboxViewMac::GetTextLength() const {
   return [field_ currentEditor] ?  [[[field_ currentEditor] string] length] :
                                    [[field_ stringValue] length];
 }
 
 bool OmniboxViewMac::IsCaretAtEnd() const {
   const NSRange selection = GetSelectedRange();
   return NSMaxRange(selection) == GetTextLength();
 }