Show scheme in black and content in gray for data: protocol urls

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

Index: chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h
index 18c18df08bfac0979d2a6ab525ac1e86d0e4c951..fc7ff9efb7dc4e9a7c6029b4429434bd2e785f40 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h
@@ -10,6 +10,7 @@
 
 #include <memory>
 
+#include "base/auto_reset.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
@@ -32,6 +33,8 @@ class OmniboxViewMac : public OmniboxView,
  public:
   static SkColor BaseTextColorSkia(bool in_dark_mode);
   static NSColor* BaseTextColor(bool in_dark_mode);
+  // Returns a color representing |security_level|, adjusted based on whether
+  // the browser is in Incognito mode.
   static NSColor* GetSecureTextColor(
       security_state::SecurityLevel security_level,
       bool in_dark_mode);
@@ -180,9 +183,12 @@ class OmniboxViewMac : public OmniboxView,
   void ApplyTextStyle(NSMutableAttributedString* attributedString);
 
   // Calculates text attributes according to |display_text| and applies them
-  // to the given |attributedString| object.
+  // to the given |attributed_string| object.
   void ApplyTextAttributes(const base::string16& display_text,
-                           NSMutableAttributedString* attributedString);
+                           NSMutableAttributedString* attributed_string);
+
+  void SetEmphasis(bool emphasize, const gfx::Range& range) override;

[Peter Kasting, 2017/03/03 02:31:08]

Nit: Consider an "// OmniboxView:" header above these two to emphasize that
they're overrides, and where they came from

[elawrence, 2017/03/03 16:07:42]

Done.

+  void UpdateSchemeStyle(const gfx::Range& scheme_range) override;
 
   // Return the number of UTF-16 units in the current buffer, excluding the
   // suggested text.
@@ -231,6 +237,10 @@ class OmniboxViewMac : public OmniboxView,
   // The time when OnBeforeDrawRect() was called.
   base::TimeTicks draw_rect_start_time_;
 
+  // Temporary pointer to the attributed display string, stored as color and
+  // other emphasis attributes are applied by the superclass.
+  NSMutableAttributedString* attributing_display_string_;  // weak
+
   DISALLOW_COPY_AND_ASSIGN(OmniboxViewMac);
 };