[Mac][Material Design] Adjust EV chip to match Material Design spec.

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm

Index: chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
index 621ee6e2275182c6d0281f69b4cb90629d4a8b6c..b9217a9c1f13546b2373bba6c88a0052f9147903 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm
@@ -159,13 +159,21 @@ NSColor* OmniboxViewMac::SuggestTextColor() {
   return [NSColor colorWithCalibratedWhite:0.0 alpha:0.5];
 }
 
+//static
+SkColor OmniboxViewMac::SkBaseTextColor(bool in_dark_mode) {
+  // The returned colors should match BaseTextColor.
+  const SkColor kFiftyPercentWhite = 0x7FFFFFFF;
+  const SkColor kFiftyPercentBlack = 0x7F000000;
+  return in_dark_mode ? kFiftyPercentWhite

[tapted, 2016/04/27 02:37:39]

what you have is fine, an alternative if you like it could be

return in_dark_mode ? SkColorSetA(SK_ColorWHITE, 127)
    : SkColorSetA(SK_ColorBLACK, 127);

This avoids the assumption that SkColor is ARGB, but that's unlikely to change,
and I don't really like those 127s either

[shrike, 2016/04/27 16:35:17]

I like your suggestion better (with 0x7F instead of 127).

+                      : kFiftyPercentBlack;
+}
+
 // static
-NSColor* OmniboxViewMac::BaseTextColor(bool inDarkMode) {
+NSColor* OmniboxViewMac::BaseTextColor(bool in_dark_mode) {
   if (!ui::MaterialDesignController::IsModeMaterial()) {
     return [NSColor darkGrayColor];
   }
-  return inDarkMode ? [NSColor colorWithCalibratedWhite:1 alpha:0.5]
-                    : [NSColor colorWithCalibratedWhite:0 alpha:0.5];
+  return skia::SkColorToCalibratedNSColor(SkBaseTextColor(in_dark_mode));
 }
 
 OmniboxViewMac::OmniboxViewMac(OmniboxEditController* controller,