Revert of Make a pen in eraser mode visible thru PointerEvent.buttons

components/test_runner/event_sender.cc

Index: components/test_runner/event_sender.cc
diff --git a/components/test_runner/event_sender.cc b/components/test_runner/event_sender.cc
index 44aba8039829818bccdbb6f4e9bcbd58e5d162ca..e11fc9eea97782ec6ac3890b69a64330d8dff9ec 100644
--- a/components/test_runner/event_sender.cc
+++ b/components/test_runner/event_sender.cc
@@ -63,11 +63,10 @@
 namespace {
 
 const int kRawMousePointerId = -1;
-const char* const kPointerTypeStringUnknown = "";
-const char* const kPointerTypeStringMouse = "mouse";
-const char* const kPointerTypeStringTouch = "touch";
-const char* const kPointerTypeStringPen = "pen";
-const char* const kPointerTypeStringEraser = "eraser";
+const char* kPointerTypeStringUnknown = "";
+const char* kPointerTypeStringMouse = "mouse";
+const char* kPointerTypeStringPen = "pen";
+const char* kPointerTypeStringTouch = "touch";
 
 // Assigns |pointerType| from the provided |args|. Returns false if there was
 // any error.
@@ -91,12 +90,10 @@
     pointerType = WebMouseEvent::PointerType::Unknown;
   } else if (pointer_type_string == kPointerTypeStringMouse) {
     pointerType = WebMouseEvent::PointerType::Mouse;
+  } else if (pointer_type_string == kPointerTypeStringPen) {
+    pointerType = WebMouseEvent::PointerType::Pen;
   } else if (pointer_type_string == kPointerTypeStringTouch) {
     pointerType = WebMouseEvent::PointerType::Touch;
-  } else if (pointer_type_string == kPointerTypeStringPen) {
-    pointerType = WebMouseEvent::PointerType::Pen;
-  } else if (pointer_type_string == kPointerTypeStringEraser) {
-    pointerType = WebMouseEvent::PointerType::Eraser;
   } else {
     args->ThrowError();
     return false;
@@ -178,10 +175,6 @@
       return WebMouseEvent::MiddleButtonDown;
     case WebMouseEvent::Button::Right:
       return WebMouseEvent::RightButtonDown;
-    case WebPointerProperties::Button::X1:
-    case WebPointerProperties::Button::X2:
-    case WebPointerProperties::Button::Eraser:
-      return 0; // Not implemented yet
   }
   NOTREACHED();
   return 0;