[Ash] Remove non-MD code from ImeListView and ImeListItemView

ash/common/system/tray/tray_constants.cc

Index: ash/common/system/tray/tray_constants.cc
diff --git a/ash/common/system/tray/tray_constants.cc b/ash/common/system/tray/tray_constants.cc
index 1a0ef614bb84ffec5a65bf1ed7d85a1a39f9ec8f..9cfbbaa849924b75ff929b1699dbfc43f87093b9 100644
--- a/ash/common/system/tray/tray_constants.cc
+++ b/ash/common/system/tray/tray_constants.cc
@@ -59,7 +59,6 @@ const int kTrayPopupLabelRightPadding = 8;
 const int kTrayPopupDetailsIconWidth = 25;
 const int kTrayPopupDetailsLabelExtraLeftMargin = 8;
 const SkColor kTrayPopupHoverBackgroundColor = SkColorSetRGB(0xe4, 0xe4, 0xe4);
-const int kTrayPopupScrollSeparatorHeight = 15;
 const int kTrayRoundedBorderRadius = 2;
 
 const int kTrayToggleButtonWidth = 68;
@@ -70,10 +69,6 @@ const SkColor kPublicAccountUserCardNameColor = SK_ColorBLACK;
 
 const SkColor kHeaderBackgroundColor = SkColorSetRGB(0xf5, 0xf5, 0xf5);
 
-const SkColor kBorderDarkColor = SkColorSetRGB(0xaa, 0xaa, 0xaa);
-const SkColor kBorderLightColor = SkColorSetRGB(0xeb, 0xeb, 0xeb);
-const SkColor kButtonStrokeColor = SkColorSetRGB(0xdd, 0xdd, 0xdd);
-
 const SkColor kHeaderTextColorNormal = SkColorSetARGB(0x7f, 0, 0, 0);
 const SkColor kHeaderTextColorHover = SkColorSetARGB(0xd3, 0, 0, 0);