Add a Physical Web omnibox autocomplete provider

components/omnibox/browser/mock_autocomplete_provider_client.h

 // Copyright 2015 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_MOCK_AUTOCOMPLETE_PROVIDER_CLIENT_H_
 #define COMPONENTS_OMNIBOX_BROWSER_MOCK_AUTOCOMPLETE_PROVIDER_CLIENT_H_
 
 #include <string>
 #include <utility>
 
@@ skipping 29 matching lines @@
   TemplateURLService* GetTemplateURLService() override {
     return template_url_service_.get();
   }
   const TemplateURLService* GetTemplateURLService() const override {
     return template_url_service_.get();
   }
   std::unique_ptr<KeywordExtensionsDelegate> GetKeywordExtensionsDelegate(
       KeywordProvider* keyword_provider) override {
     return nullptr;
   }
+  PhysicalWebDataSource* GetPhysicalWebDataSource() override {
+    return nullptr;
+  }
 
   MOCK_CONST_METHOD0(GetSearchTermsData, const SearchTermsData&());
 
   // Can't mock scoped_refptr :\.
   scoped_refptr<ShortcutsBackend> GetShortcutsBackend() override {
     return nullptr;
   }
   scoped_refptr<ShortcutsBackend> GetShortcutsBackendIfExists() override {
     return nullptr;
   }
@@ skipping 21 matching lines @@
     template_url_service_ = std::move(service);
   }
 
  private:
   std::unique_ptr<TemplateURLService> template_url_service_;
 
   DISALLOW_COPY_AND_ASSIGN(MockAutocompleteProviderClient);
 };
 
 #endif  // COMPONENTS_OMNIBOX_AUTOCOMPLETE_PROVIDER_CLIENT_H_