Interpret '?' and Ctrl-K or Ctrl-E as putting omnibox in keyword search mode for Default Search Pro…

components/omnibox/browser/keyword_provider.cc

 // Copyright 2014 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 "components/omnibox/browser/keyword_provider.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 341 matching lines @@
   if (extensions_delegate_ && !due_to_user_inactivity)
     extensions_delegate_->MaybeEndExtensionKeywordMode();
 }
 
 KeywordProvider::~KeywordProvider() {}
 
 // static
 bool KeywordProvider::ExtractKeywordFromInput(const AutocompleteInput& input,
                                               base::string16* keyword,
                                               base::string16* remaining_input) {
-  if ((input.type() == metrics::OmniboxInputType::INVALID) ||
-      (input.type() == metrics::OmniboxInputType::FORCED_QUERY))
+  if ((input.type() == metrics::OmniboxInputType::INVALID))
     return false;
 
   *keyword = TemplateURLService::CleanUserInputKeyword(
       SplitKeywordFromInput(input.text(), true, remaining_input));
   return !keyword->empty();
 }
 
 // static
 int KeywordProvider::CalculateRelevance(metrics::OmniboxInputType::Type type,
                                         bool complete,
@@ skipping 124 matching lines @@
         ACMatchClassification::NONE, &match->contents_class);
   }
 }
 
 TemplateURLService* KeywordProvider::GetTemplateURLService() const {
   // Make sure the model is loaded. This is cheap and quickly bails out if
   // the model is already loaded.
   model_->Load();
   return model_;
 }