Stopgap: Adding back AucocompleteController::input() accessor to unbreak clank.

chrome/browser/autocomplete/autocomplete_controller.h

Index: chrome/browser/autocomplete/autocomplete_controller.h
diff --git a/chrome/browser/autocomplete/autocomplete_controller.h b/chrome/browser/autocomplete/autocomplete_controller.h
index f3db513ff9e10b680728a55ee3489e4d45f00706..5242363c6323707d5254d12df783e89699c04b66 100644
--- a/chrome/browser/autocomplete/autocomplete_controller.h
+++ b/chrome/browser/autocomplete/autocomplete_controller.h
@@ -117,6 +117,13 @@ class AutocompleteController : public AutocompleteProviderListener {
   KeywordProvider* keyword_provider() const { return keyword_provider_; }
   SearchProvider* search_provider() const { return search_provider_; }
 
+  // Deprecated. Do not use that method! It's provided temporarily as clank
+  // migrates. If you need to access the aucomplete input you should keep a
+  // local copy of it.
+  // TODO(beaudoin): Remove this method once clank no longer rely on it.
+  // crbug.com/367832
+  const AutocompleteInput& input() const { return input_; }
+
   const AutocompleteResult& result() const { return result_; }
   bool done() const { return done_; }
   const ACProviders* providers() const { return &providers_; }