Omnibox: Preserve display text and select all on a focus search

chrome/browser/autocomplete/autocomplete_browsertest.cc

 // 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 <stddef.h>
 
 #include "base/command_line.h"
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 311 matching lines @@
     omnibox_model->ClearKeyword();
 
     EXPECT_FALSE(location_bar->GetDestinationURL().is_valid());
     EXPECT_EQ(query_text, omnibox_view->GetText());
     EXPECT_EQ(base::string16(), omnibox_model->keyword());
     EXPECT_FALSE(omnibox_model->is_keyword_hint());
     EXPECT_FALSE(omnibox_model->is_keyword_selected());
 
     omnibox_view->RevertAll();
   }
+
+  // Calling FocusSearch() when the permanent URL is showing should result in an
+  // empty query string.
+  {
+    FocusSearchCheckPreconditions();
+
+    omnibox_model->UpdatePermanentText();
+    EXPECT_EQ(base::ASCIIToUTF16(url::kAboutBlankURL), omnibox_view->GetText());
+
+    location_bar->FocusSearch();
+    EXPECT_FALSE(location_bar->GetDestinationURL().is_valid());
+    EXPECT_EQ(base::string16(), omnibox_view->GetText());
+    EXPECT_EQ(default_search_keyword, omnibox_model->keyword());
+    EXPECT_FALSE(omnibox_model->is_keyword_hint());
+    EXPECT_TRUE(omnibox_model->is_keyword_selected());
+
+    omnibox_view->RevertAll();
+  }
 }