Allow users to perform queries in the omnibox which begin with a search shortcut.

chrome/browser/ui/omnibox/omnibox_edit_model.cc

Index: chrome/browser/ui/omnibox/omnibox_edit_model.cc
diff --git a/chrome/browser/ui/omnibox/omnibox_edit_model.cc b/chrome/browser/ui/omnibox/omnibox_edit_model.cc
index 8fa7680d7f94902a2ea0e8ac70a98e2d061bb512..b928f7ea18ea4b2f1d54ffd3085851fc1ff098cb 100644
--- a/chrome/browser/ui/omnibox/omnibox_edit_model.cc
+++ b/chrome/browser/ui/omnibox/omnibox_edit_model.cc
@@ -900,14 +900,15 @@ void OmniboxEditModel::ClearKeyword(const base::string16& visible_text) {
   autocomplete_controller()->Stop(false);
   omnibox_controller_->ClearPopupKeywordMode();
 
-  const base::string16 window_text(keyword_ + visible_text);
+  const base::string16 window_text(keyword_ +
+    reinterpret_cast<base::char16 const*>(L" ") + visible_text);

[sky, 2014/08/15 18:10:28]

This isn't the right way to get a string16. You want ASCIIToUTF16(" ").

 
   // Only reset the result if the edit text has changed since the
   // keyword was accepted, or if the popup is closed.
   if (just_deleted_text_ || !visible_text.empty() ||
       !(popup_model() && popup_model()->IsOpen())) {
     view_->OnBeforePossibleChange();
-    view_->SetWindowTextAndCaretPos(window_text.c_str(), keyword_.length(),
+    view_->SetWindowTextAndCaretPos(window_text.c_str(), keyword_.length() + 1,
         false, false);
     keyword_.clear();
     is_keyword_hint_ = false;
@@ -917,7 +918,7 @@ void OmniboxEditModel::ClearKeyword(const base::string16& visible_text) {
                                 // longer.
   } else {
     is_keyword_hint_ = true;
-    view_->SetWindowTextAndCaretPos(window_text.c_str(), keyword_.length(),
+    view_->SetWindowTextAndCaretPos(window_text.c_str(), keyword_.length() + 1,
         false, true);
   }