Reuse the code within UpdateCheckMark()

ash/common/system/chromeos/audio/audio_detailed_view.cc

Index: ash/common/system/chromeos/audio/audio_detailed_view.cc
diff --git a/ash/common/system/chromeos/audio/audio_detailed_view.cc b/ash/common/system/chromeos/audio/audio_detailed_view.cc
index 4772e8a34931edbe3e4a691fa3969e2544c4934e..0ccc18d9ecf06f34f62905f5fb66b9d4feb4458c 100644
--- a/ash/common/system/chromeos/audio/audio_detailed_view.cc
+++ b/ash/common/system/chromeos/audio/audio_detailed_view.cc
@@ -6,6 +6,7 @@
 
 #include "ash/common/system/tray/hover_highlight_view.h"
 #include "ash/common/system/tray/tray_popup_utils.h"
+#include "ash/common/system/tray/tray_utils.h"
 #include "ash/common/system/tray/tri_view.h"
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/strings/grit/ash_strings.h"
@@ -111,15 +112,9 @@ HoverHighlightView* AudioDetailedView::AddScrollListItem(
 
   container->AddLabelRow(text);
   if (checked) {

[tdanderson, 2017/04/06 17:52:09]

nit: In general in the code base we avoid braces for conditionals with a single
line body (https://google.github.io/styleguide/cppguide.html#Conditionals). So
here (and elsewhere in this CL) you should format as:

if (checked)
  SetCheckMarkVisible(container);


We usually only include braces if the body is multiline:

if (condition) {
  x++;
  y--;
}

or if the condition itself is multiline:

if (some_long_condition_over_80_chars &&
    something_else) {
  foo();
}

or if it is part of an if / else if / else if where at least one of those parts
is multiline:

if (condition) {
  x++;
} else if (condition2) {
  y++;
  z--;
} else {
  x += y;
}

-    gfx::ImageSkia check_mark =
-        gfx::CreateVectorIcon(kCheckCircleIcon, gfx::kGoogleGreen700);
-    container->AddRightIcon(check_mark, check_mark.width());
-    container->SetRightViewVisible(true);
-    container->SetAccessiblityState(
-        HoverHighlightView::AccessibilityState::CHECKED_CHECKBOX);
+    SetCheckMarkVisible(container);
   } else {
-    container->SetAccessiblityState(
-        HoverHighlightView::AccessibilityState::UNCHECKED_CHECKBOX);
+    SetCheckMarkInvisible(container);
   }
 
   scroll_content()->AddChildView(container);