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

ui/gfx/display.cc

Index: ui/gfx/display.cc
diff --git a/ui/gfx/display.cc b/ui/gfx/display.cc
index 1777e87e5433822f6769e053a6459a0cd18499dd..fcd860ee29de907e72a531fc438dd591664dea32 100644
--- a/ui/gfx/display.cc
+++ b/ui/gfx/display.cc
@@ -5,6 +5,7 @@
 #include "ui/gfx/display.h"
 
 #include <algorithm>
+#include <vector>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ -77,14 +78,17 @@ Display::Display()
     : id_(kInvalidDisplayID),
       device_scale_factor_(GetForcedDeviceScaleFactor()),
       rotation_(ROTATE_0),
-      touch_support_(TOUCH_SUPPORT_UNKNOWN) {
-}
+      touch_support_(TOUCH_SUPPORT_UNKNOWN),
+      physical_width_mm_(0),
+      physical_height_mm_(0) {}
 
 Display::Display(int64_t id)
     : id_(id),
       device_scale_factor_(GetForcedDeviceScaleFactor()),
       rotation_(ROTATE_0),
-      touch_support_(TOUCH_SUPPORT_UNKNOWN) {}
+      touch_support_(TOUCH_SUPPORT_UNKNOWN),
+      physical_width_mm_(0),
+      physical_height_mm_(0) {}
 
 Display::Display(int64_t id, const gfx::Rect& bounds)
     : id_(id),
@@ -92,7 +96,9 @@ Display::Display(int64_t id, const gfx::Rect& bounds)
       work_area_(bounds),
       device_scale_factor_(GetForcedDeviceScaleFactor()),
       rotation_(ROTATE_0),
-      touch_support_(TOUCH_SUPPORT_UNKNOWN) {
+      touch_support_(TOUCH_SUPPORT_UNKNOWN),
+      physical_width_mm_(0),
+      physical_height_mm_(0) {
 #if defined(USE_AURA)
   SetScaleAndBounds(device_scale_factor_, bounds);
 #endif
@@ -195,6 +201,20 @@ bool Display::IsInternal() const {
   return is_valid() && (id_ == internal_display_id_);
 }
 
+bool Display::IsPhysicalSizeAvailable() const {
+  return physical_width_mm_ != 0 && physical_height_mm_ != 0;
+}
+
+gfx::Size Display::GetPhysicalSizeMm() const {
+  DCHECK(IsPhysicalSizeAvailable());
+  return gfx::Size(physical_width_mm_, physical_height_mm_);
+}
+
+void Display::SetPhysicalSize(int width_mm, int height_mm) {
+  physical_width_mm_ = width_mm;
+  physical_height_mm_ = height_mm;
+}
+
 // static
 int64_t Display::InternalDisplayId() {
   DCHECK_NE(kInvalidDisplayID, internal_display_id_);