Revert of EventSender: Added checks for missing arguments

content/shell/renderer/test_runner/event_sender.cc

Index: content/shell/renderer/test_runner/event_sender.cc
diff --git a/content/shell/renderer/test_runner/event_sender.cc b/content/shell/renderer/test_runner/event_sender.cc
index e1e47012d5e36d105c44fade98a6e48a8d9e091b..392ef75ea5a6f8cd9efe833e410109f504a27653 100644
--- a/content/shell/renderer/test_runner/event_sender.cc
+++ b/content/shell/renderer/test_runner/event_sender.cc
@@ -1640,10 +1640,8 @@
 void EventSender::AddTouchPoint(gin::Arguments* args) {
   double x;
   double y;
-  if (!args->GetNext(&x) || !args->GetNext(&y)) {
-    args->ThrowError();
-    return;
-  }
+  args->GetNext(&x);
+  args->GetNext(&y);
 
   WebTouchPoint touch_point;
   touch_point.state = WebTouchPoint::StatePressed;
@@ -1763,10 +1761,8 @@
 
   double x;
   double y;
-  if (!args->GetNext(&x) || !args->GetNext(&y)) {
-    args->ThrowError();
-    return;
-  }
+  args->GetNext(&x);
+  args->GetNext(&y);
   WebPoint mouse_pos(static_cast<int>(x), static_cast<int>(y));
 
   int modifiers = 0;
@@ -1928,10 +1924,9 @@
                                gin::Arguments* args) {
   double x;
   double y;
-  if (!args->GetNext(&x) || !args->GetNext(&y)) {
-    args->ThrowError();
-    return;
-  }
+  args->GetNext(&x);
+  args->GetNext(&y);
+  WebPoint point(x, y);
 
   WebGestureEvent event;
   event.type = type;
@@ -1949,7 +1944,7 @@
           current_gesture_location_.y + event.data.scrollUpdate.deltaY;
       break;
     case WebInputEvent::GestureScrollBegin:
-      current_gesture_location_ = WebPoint(x, y);
+      current_gesture_location_ = WebPoint(point.x, point.y);
       event.x = current_gesture_location_.x;
       event.y = current_gesture_location_.y;
       break;
@@ -1984,8 +1979,8 @@
       event.data.tap.tapCount = tap_count;
       event.data.tap.width = width;
       event.data.tap.height = height;
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       break;
     }
     case WebInputEvent::GestureTapUnconfirmed:
@@ -1999,8 +1994,8 @@
       } else {
         event.data.tap.tapCount = 1;
       }
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       break;
     case WebInputEvent::GestureTapDown:
     {
@@ -2018,8 +2013,8 @@
           return;
         }
       }
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       event.data.tapDown.width = width;
       event.data.tapDown.height = height;
       break;
@@ -2040,19 +2035,19 @@
           }
         }
       }
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       event.data.showPress.width = width;
       event.data.showPress.height = height;
       break;
     }
     case WebInputEvent::GestureTapCancel:
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       break;
     case WebInputEvent::GestureLongPress:
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       if (!args->PeekNext().IsEmpty()) {
         float width;
         if (!args->GetNext(&width)) {
@@ -2071,8 +2066,8 @@
       }
       break;
     case WebInputEvent::GestureLongTap:
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       if (!args->PeekNext().IsEmpty()) {
         float width;
         if (!args->GetNext(&width)) {
@@ -2091,8 +2086,8 @@
       }
       break;
     case WebInputEvent::GestureTwoFingerTap:
-      event.x = x;
-      event.y = y;
+      event.x = point.x;
+      event.y = point.y;
       if (!args->PeekNext().IsEmpty()) {
         float first_finger_width;
         if (!args->GetNext(&first_finger_width)) {
@@ -2128,7 +2123,7 @@
     WebMouseEvent mouse_event;
     InitMouseEvent(WebInputEvent::MouseDown,
                    pressed_button_,
-                   WebPoint(x, y),
+                   point,
                    GetCurrentEventTimeSec(),
                    click_count_,
                    0,