Added capability on Windows to get the physical dimensions of your attached monitors. Also added th…

content/browser/gpu/gpu_internals_ui.cc

Index: content/browser/gpu/gpu_internals_ui.cc
diff --git a/content/browser/gpu/gpu_internals_ui.cc b/content/browser/gpu/gpu_internals_ui.cc
index e93c9015202ee9fd528180814c4897c98cb52c15..e8ddf3b565abe6e39176aef2ef25c2a3dda3c410 100644
--- a/content/browser/gpu/gpu_internals_ui.cc
+++ b/content/browser/gpu/gpu_internals_ui.cc
@@ -42,6 +42,7 @@
 #endif
 #if defined(OS_WIN)
 #include "ui/base/win/shell.h"
+#include "ui/gfx/win/physical_size.h"
 #endif
 
 #if defined(OS_LINUX) && defined(USE_X11)
@@ -148,6 +149,21 @@ base::DictionaryValue* GpuInfoAsDictionaryValue() {
     basic_info->Append(NewDescriptionValuePair("Using WARP",
         new base::FundamentalValue(true)));
   }
+
+  std::vector<gfx::PhysicalDisplaySize> display_sizes;
+  gfx::GetPhysicalSizeForDisplays(&display_sizes);
+  for (const auto& display_size : display_sizes) {
+    int w = display_size.width_mm;
+    int h = display_size.height_mm;
+    double size_mm = sqrt(w * w + h * h);

[scottmg, 2016/01/12 01:03:13]

Optional nit: Since these are just breaking up a calculation, maybe "const int
...", and "const double ..." would be nice here.

[Bret, 2016/01/12 22:55:17]

Done.

+    double size_inches = 0.0393701 * size_mm;
+    double rounded_size_inches = floor(10.0 * size_inches) / 10.0;
+    std::string size_string = base::StringPrintf("%.1f\"", rounded_size_inches);
+    std::string description_string = base::StringPrintf(
+        "Diagonal Monitor Size of %s", display_size.display_name.c_str());
+    basic_info->Append(
+        NewDescriptionValuePair(description_string, size_string));
+  }
 #endif
 
   std::string disabled_extensions;