Adds the ability for WebContentsDelegate to decide if event should be updated

chrome/test/base/test_browser_window.cc

Index: chrome/test/base/test_browser_window.cc
diff --git a/chrome/test/base/test_browser_window.cc b/chrome/test/base/test_browser_window.cc
index 1894828f7b06470ce9836fd4cfa3dfdd8d99be21..c84cbe9a39e8315d70c5feee12cbb2b9e01eb2cc 100644
--- a/chrome/test/base/test_browser_window.cc
+++ b/chrome/test/base/test_browser_window.cc
@@ -7,9 +7,9 @@
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_list_observer.h"
+#include "content/public/browser/keyboard_event_processing_result.h"
 #include "ui/gfx/geometry/rect.h"
 
-
 // Helpers --------------------------------------------------------------------
 
 namespace chrome {
@@ -121,10 +121,10 @@ ToolbarActionsBar* TestBrowserWindow::GetToolbarActionsBar() {
   return nullptr;
 }
 
-bool TestBrowserWindow::PreHandleKeyboardEvent(
-    const content::NativeWebKeyboardEvent& event,
-    bool* is_keyboard_shortcut) {
-  return false;
+content::KeyboardEventProcessingResult
+TestBrowserWindow::PreHandleKeyboardEvent(
+    const content::NativeWebKeyboardEvent& event) {
+  return content::KeyboardEventProcessingResult::NOT_HANDLED;
 }
 
 bool TestBrowserWindow::IsBookmarkBarVisible() const {