Omnibox - Make Clipboard Provider Enabled via an Experimental Feature

components/omnibox/browser/autocomplete_classifier.h

Index: components/omnibox/browser/autocomplete_classifier.h
diff --git a/components/omnibox/browser/autocomplete_classifier.h b/components/omnibox/browser/autocomplete_classifier.h
index c1a08a703d067276ae9a039450cd4207da787943..91e87341e7a8caceefaa6ee3eb996db6b022a7cb 100644
--- a/components/omnibox/browser/autocomplete_classifier.h
+++ b/components/omnibox/browser/autocomplete_classifier.h
@@ -23,7 +23,7 @@ class AutocompleteClassifier : public KeyedService {
   // Bitmap of AutocompleteProvider::Type values describing the default set of
   // providers queried for the omnibox.  Intended to be passed to
   // AutocompleteController().
-  static const int kDefaultOmniboxProviders;
+  static int DefaultOmniboxProviders();

[Mark P, 2017/02/28 23:06:02]

TODO(mpearson): after review, move this down to line 36 (i.e., just below
Shutdown()) and move the implementation correspondingly.  I left it in the
current place for the moment to make this easier to review.

 
   AutocompleteClassifier(
       std::unique_ptr<AutocompleteController> controller_,