Replace hard-coded colors from ui::NativeTheme for consistency and accessibility.

chrome/browser/ui/views/autofill/autofill_popup_base_view.cc

Index: chrome/browser/ui/views/autofill/autofill_popup_base_view.cc
diff --git a/chrome/browser/ui/views/autofill/autofill_popup_base_view.cc b/chrome/browser/ui/views/autofill/autofill_popup_base_view.cc
index dd09b9ac9d72753e8e32a00039d4380b781d8446..34d1bf15c86c9d7235b100fdff84fa2a5ec4b8fc 100644
--- a/chrome/browser/ui/views/autofill/autofill_popup_base_view.cc
+++ b/chrome/browser/ui/views/autofill/autofill_popup_base_view.cc
@@ -10,6 +10,7 @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "chrome/browser/ui/autofill/popup_constants.h"
+#include "ui/native_theme/native_theme.h"
 #include "ui/views/border.h"
 #include "ui/views/focus/focus_manager.h"
 #include "ui/views/widget/widget.h"
@@ -60,7 +61,10 @@ void AutofillPopupBaseView::DoShow() {
     show_time_ = base::Time::Now();
   }
 
-  SetBorder(views::CreateSolidBorder(kPopupBorderThickness, kBorderColor));
+  SetBorder(views::CreateSolidBorder(
+      kPopupBorderThickness,
+      GetNativeTheme()->GetSystemColor(
+          ui::NativeTheme::kColorId_UnfocusedBorderColor)));

[Mathieu, 2016/12/20 20:36:40]

Is there a possibility to have a code path where we are using
kColorId_FocusedBorderColor when hovered? Feel free to add as
TODO(crbug.com/xxxxxx) 

https://cs.chromium.org/chromium/src/ui/native_theme/native_theme.h?rcl=0&l=260

[jiahuiguo, 2017/01/03 19:37:52]

Done. Added in https://crbug.com/676164

[Mathieu, 2017/01/04 13:51:48]

Please reference here:

// TODO(crbug.com/676164): ...

[jiahuiguo, 2017/01/05 19:21:20]

Done.

 
   DoUpdateBoundsAndRedrawPopup();
   GetWidget()->Show();