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

content/browser/renderer_host/render_widget_host_delegate.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 
 #include "build/build_config.h"
 #include "components/rappor/public/sample.h"
 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
+#include "content/public/browser/keyboard_event_processing_result.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace content {
 
 void RenderWidgetHostDelegate::GetScreenInfo(ScreenInfo*) {}
 
-bool RenderWidgetHostDelegate::PreHandleKeyboardEvent(
-    const NativeWebKeyboardEvent& event,
-    bool* is_keyboard_shortcut) {
-  return false;
+KeyboardEventProcessingResult RenderWidgetHostDelegate::PreHandleKeyboardEvent(
+    const NativeWebKeyboardEvent& event) {
+  return KeyboardEventProcessingResult::NOT_HANDLED;
 }
 
 bool RenderWidgetHostDelegate::HandleWheelEvent(
     const blink::WebMouseWheelEvent& event) {
   return false;
 }
 
 bool RenderWidgetHostDelegate::PreHandleGestureEvent(
     const blink::WebGestureEvent& event) {
   return false;
@@ skipping 71 matching lines @@
     rappor::Sample* sample) {
   sample->SetStringField("Domain", "Unknown");
   return false;
 }
 
 WebContents* RenderWidgetHostDelegate::GetAsWebContents() {
   return nullptr;
 }
 
 }  // namespace content