Omnibox: Fix URL-What-You-Typed Allowed-To-Be-Default-Match Issues

chrome/browser/autocomplete/history_quick_provider.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 "chrome/browser/autocomplete/history_quick_provider.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
@@ skipping 257 matching lines @@
     // |fill_into_edit| if the user has typed an URL with a scheme and the
     // last character typed is a slash.  That slash is removed by the
     // FormatURLWithOffsets call above.
     if (inline_autocomplete_offset < match.fill_into_edit.length()) {
       match.inline_autocompletion =
           match.fill_into_edit.substr(inline_autocomplete_offset);
     }
     match.allowed_to_be_default_match = match.inline_autocompletion.empty() ||
         !PreventInlineAutocomplete(autocomplete_input_);
   }
+  // Also allow a user's input to be marked as default if it would be fixed
+  // up to something equivalent to the URL-what-you-typed match.  This handles
+  // cases like the cursor being into the middle of input, making
+  // ScoredHistoryMatch think the input is two terms and thus be unable to
+  // decide if it's inlineable.
+  match.ComputeStrippedDestinationURL(profile_);
+  if (AutocompleteMatch::GURLToStrippedGURL(
+          autocomplete_input_.canonicalized_url(), profile_,
+          base::string16()) == match.stripped_destination_url)
+    match.allowed_to_be_default_match = true;
 
   // Format the description autocomplete presentation.
   match.description = info.title();
   match.description_class = SpansFromTermMatch(
       history_match.title_matches(), match.description.length(), false);
 
   match.RecordAdditionalInfo("typed count", info.typed_count());
   match.RecordAdditionalInfo("visit count", info.visit_count());
   match.RecordAdditionalInfo("last visit", info.last_visit());
 
   return match;
 }
 
 history::InMemoryURLIndex* HistoryQuickProvider::GetIndex() {
   if (index_for_testing_.get())
     return index_for_testing_.get();
 
   HistoryService* const history_service =
       HistoryServiceFactory::GetForProfile(profile_, Profile::EXPLICIT_ACCESS);
   if (!history_service)
     return NULL;
 
   return history_service->InMemoryIndex();
 }