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

content/renderer/gpu/gpu_benchmarking_extension.cc

Index: content/renderer/gpu/gpu_benchmarking_extension.cc
diff --git a/content/renderer/gpu/gpu_benchmarking_extension.cc b/content/renderer/gpu/gpu_benchmarking_extension.cc
index 88e14fac59ae60e80a49bf1f4cd6e94be46c9a73..e5454049a5d982928b16c55ccb8eac99c6bccd03 100644
--- a/content/renderer/gpu/gpu_benchmarking_extension.cc
+++ b/content/renderer/gpu/gpu_benchmarking_extension.cc
@@ -854,28 +854,40 @@ 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) {