Replace mouse actions in pointer event tests with pointerActionSequence

content/common/input/synthetic_web_input_event_builders.cc

Index: content/common/input/synthetic_web_input_event_builders.cc
diff --git a/content/common/input/synthetic_web_input_event_builders.cc b/content/common/input/synthetic_web_input_event_builders.cc
index 3c5800df885ef52aa3b53d2c959ebe7d15acc3bb..d87df1aa093b267e2801caa799ea3dcf4156cf30 100644
--- a/content/common/input/synthetic_web_input_event_builders.cc
+++ b/content/common/input/synthetic_web_input_event_builders.cc
@@ -37,12 +37,8 @@ WebMouseEvent SyntheticWebMouseEventBuilder::Build(
   result.y = window_y;
   result.windowX = window_x;
   result.windowY = window_y;
-
-  if (type == WebInputEvent::MouseDown || type == WebInputEvent::MouseUp)
-    result.button = WebMouseEvent::Button::Left;
-  else
-    result.button = WebMouseEvent::Button::NoButton;
-
+  result.modifiers = modifiers;
+  result.pointerType = blink::WebPointerProperties::PointerType::Mouse;
   return result;
 }