Refactoring button field and its type

content/browser/devtools/protocol/input_handler.cc

Index: content/browser/devtools/protocol/input_handler.cc
diff --git a/content/browser/devtools/protocol/input_handler.cc b/content/browser/devtools/protocol/input_handler.cc
index e77697f84836566a1de18cf9d0d05dc325322356..04be3a8e487ec7ff0f44b35f1fbaf1e5c8fc5e5e 100644
--- a/content/browser/devtools/protocol/input_handler.cc
+++ b/content/browser/devtools/protocol/input_handler.cc
@@ -97,15 +97,15 @@ bool SetMouseEventButton(blink::WebMouseEvent* event,
     return true;
 
   if (*button == dispatch_mouse_event::kButtonNone) {
-    event->button = blink::WebMouseEvent::ButtonNone;
+    event->button = blink::WebMouseEvent::Button::NoButton;
   } else if (*button == dispatch_mouse_event::kButtonLeft) {
-    event->button = blink::WebMouseEvent::ButtonLeft;
+    event->button = blink::WebMouseEvent::Button::Left;
     event->modifiers |= blink::WebInputEvent::LeftButtonDown;
   } else if (*button == dispatch_mouse_event::kButtonMiddle) {
-    event->button = blink::WebMouseEvent::ButtonMiddle;
+    event->button = blink::WebMouseEvent::Button::Middle;
     event->modifiers |= blink::WebInputEvent::MiddleButtonDown;
   } else if (*button == dispatch_mouse_event::kButtonRight) {
-    event->button = blink::WebMouseEvent::ButtonRight;
+    event->button = blink::WebMouseEvent::Button::Right;
     event->modifiers |= blink::WebInputEvent::RightButtonDown;
   } else {
     return false;