Return VisualVewport bounds in screen coordinates (DIP) in GpuBenchmarking::VisualViewportXXX method

content/renderer/gpu/gpu_benchmarking_extension.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/gpu/gpu_benchmarking_extension.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 836 matching lines @@
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return 0.0;
   return context.web_view()->pageScaleFactor();
 }
 
 float GpuBenchmarking::VisualViewportY() {
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return 0.0;
-  return context.web_view()->visualViewportOffset().y;
+  float y = context.web_view()->visualViewportOffset().y;
+  blink::WebRect rect(0, y, 0, 0);
+  context.render_view_impl()->convertViewportToWindow(&rect);
+  return rect.y;
 }
 
 float GpuBenchmarking::VisualViewportX() {
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return 0.0;
-  return context.web_view()->visualViewportOffset().x;
+  float x = context.web_view()->visualViewportOffset().x;
+  blink::WebRect rect(x, 0, 0, 0);
+  context.render_view_impl()->convertViewportToWindow(&rect);
+  return rect.x;
 }
 
 float GpuBenchmarking::VisualViewportHeight() {
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return 0.0;
-  return context.web_view()->visualViewportSize().height;
+  float height = context.web_view()->visualViewportSize().height;
+  blink::WebRect rect(0, 0, 0, height);
+  context.render_view_impl()->convertViewportToWindow(&rect);
+  return rect.height;
 }
 
 float GpuBenchmarking::VisualViewportWidth() {
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return 0.0;
-  return context.web_view()->visualViewportSize().width;
+  float width = context.web_view()->visualViewportSize().width;
+  blink::WebRect rect(0, 0, width, 0);
+  context.render_view_impl()->convertViewportToWindow(&rect);
+  return rect.width;
 }
 
 bool GpuBenchmarking::Tap(gin::Arguments* args) {
   GpuBenchmarkingContext context;
   if (!context.Init(false))
     return false;
 
   float position_x;
   float position_y;
   v8::Local<v8::Function> callback;
@@ skipping 119 matching lines @@
           &gpu_driver_bug_workarounds))) {
     return;
   }
 
   v8::Local<v8::Value> result;
   if (gin::TryConvertToV8(args->isolate(), gpu_driver_bug_workarounds, &result))
     args->Return(result);
 }
 
 }  // namespace content