Omnibox - Make Clipboard Provider Enabled via an Experimental Feature

components/omnibox/browser/omnibox_field_trial.h

 // 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.
 
 #ifndef COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_FIELD_TRIAL_H_
 #define COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_FIELD_TRIAL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
 #include "components/metrics/proto/omnibox_input_type.pb.h"
 #include "components/omnibox/browser/autocomplete_match_type.h"
 
 namespace base {
 struct Feature;
 class TimeDelta;
 }
 
 namespace omnibox {
 
 extern const base::Feature kNewOmniboxAnswerTypes;
 extern const base::Feature kOmniboxEntitySuggestions;
-
+extern const base::Feature kEnableClipboardProvider;
 }
 
 // The set of parameters customizing the HUP scoring.
 struct HUPScoringParams {
   // A set of parameters describing how to cap a given count score.  First,
   // we apply a half-life based decay of the given count and then find the
   // maximum relevance score based on the decay factor or counts specified
   // in the corresponding bucket list. See comment on |buckets_| for details.
   class ScoreBuckets {
    public:
@@ skipping 464 matching lines @@
   // prioritize different wildcard contexts, see the implementation.  How to
   // interpret the value is left to the caller; this is rule-dependent.
   static std::string GetValueForRuleInContext(
       const std::string& rule,
       metrics::OmniboxEventProto::PageClassification page_classification);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(OmniboxFieldTrial);
 };
 
 #endif  // COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_FIELD_TRIAL_H_