Update telemetry tests that rely on window.innerWidth/Height.

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 454f5f5e5f9410e66312c0a7fc2d371037f1d691..2bfce62e9edfb8dc52f034480dd7f99cca307cfc 100644
--- a/content/renderer/gpu/gpu_benchmarking_extension.cc
+++ b/content/renderer/gpu/gpu_benchmarking_extension.cc
@@ -456,6 +456,8 @@ gin::ObjectTemplateBuilder GpuBenchmarking::GetObjectTemplateBuilder(
       //                 stable.
       .SetValue("newPinchInterface", true)
       .SetMethod("pinchBy", &GpuBenchmarking::PinchBy)
+      .SetMethod("visualViewportHeight", &GpuBenchmarking::VisualViewportHeight)
+      .SetMethod("visualViewportWidth", &GpuBenchmarking::VisualViewportWidth)
       .SetMethod("tap", &GpuBenchmarking::Tap)
       .SetMethod("clearImageCache", &GpuBenchmarking::ClearImageCache)
       .SetMethod("runMicroBenchmark", &GpuBenchmarking::RunMicroBenchmark)
@@ -744,6 +746,20 @@ bool GpuBenchmarking::PinchBy(gin::Arguments* args) {
   return true;
 }
 
+float GpuBenchmarking::VisualViewportHeight() {
+  GpuBenchmarkingContext context;
+  if (!context.Init(false))
+    return 0.0;
+  return context.web_view()->visualViewportSize().height;
+}
+
+float GpuBenchmarking::VisualViewportWidth() {
+  GpuBenchmarkingContext context;
+  if (!context.Init(false))
+    return 0.0;
+  return context.web_view()->visualViewportSize().width;
+}
+
 bool GpuBenchmarking::Tap(gin::Arguments* args) {
   GpuBenchmarkingContext context;
   if (!context.Init(false))