Add Physical Web omnibox support for Android

chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc

Index: chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc
diff --git a/chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc b/chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc
index 1eeea049045b33b30d8254dd6bb313a2ce5b4a6d..12d6b2f1c50ade6f3d7ab02dd611ca7995ebf8eb 100644
--- a/chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc
+++ b/chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher_service.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher_service_factory.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/top_sites_factory.h"
@@ -153,7 +154,7 @@ ChromeAutocompleteProviderClient::GetKeywordExtensionsDelegate(
 
 physical_web::PhysicalWebDataSource*
 ChromeAutocompleteProviderClient::GetPhysicalWebDataSource() {
-  return nullptr;
+  return g_browser_process->GetPhysicalWebDataSource();
 }
 
 std::string ChromeAutocompleteProviderClient::GetAcceptLanguages() const {