Convert the coordinates in WebInputEvent To Viewport in InputRouter

content/browser/renderer_host/input/web_input_event_util_unittest.cc

Index: content/browser/renderer_host/input/web_input_event_util_unittest.cc
diff --git a/content/browser/renderer_host/input/web_input_event_util_unittest.cc b/content/browser/renderer_host/input/web_input_event_util_unittest.cc
index 439e2c1893a36eec4d1703bd0e1da86bec71cddd..d3dfb3cc182fb9c3296f38c2a565650f75805ddb 100644
--- a/content/browser/renderer_host/input/web_input_event_util_unittest.cc
+++ b/content/browser/renderer_host/input/web_input_event_util_unittest.cc
@@ -10,6 +10,7 @@
 #include <cmath>
 
 #include "content/browser/renderer_host/input/web_input_event_util.h"
+#include "content/common/input/synthetic_web_input_event_builders.h"
 #include "content/common/input/web_input_event_traits.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/blink/blink_event_util.h"
@@ -122,4 +123,12 @@ TEST(WebInputEventUtilTest, ScrollUpdateConversion) {
   EXPECT_TRUE(web_event.data.scrollUpdate.previousUpdateInSequencePrevented);
 }
 
+TEST(WebInputEventUtilTest, NoScalingWith1DSF) {
+  auto event =
+      SyntheticWebMouseEventBuilder::Build(blink::WebInputEvent::MouseMove,
+                                           10, 10, 0);
+  EXPECT_FALSE(ConvertWebInputEventToViewport(event, 1.f));
+  EXPECT_TRUE(ConvertWebInputEventToViewport(event, 2.f));
+}
+
 }  // namespace content