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

ios/chrome/browser/ui/omnibox/omnibox_view_ios.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef IOS_CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_VIEW_IOS_H_
 #define IOS_CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_VIEW_IOS_H_
 
 #import <UIKit/UIKit.h>
 
 #include <memory>
-
+#include "base/auto_reset.h"
 #include "base/mac/scoped_nsobject.h"
 #include "components/omnibox/browser/omnibox_view.h"
 #include "components/toolbar/toolbar_model.h"
 #import "ios/chrome/browser/ui/omnibox/omnibox_text_field_ios.h"
 
 struct AutocompleteMatch;
 class AutocompleteResult;
 @class AutocompleteTextFieldDelegate;
 class GURL;
 @class OmniboxTextFieldIOS;
@@ skipping 11 matching lines @@
 class OmniboxViewIOS : public OmniboxView {
  public:
   // Retains |field|.
   OmniboxViewIOS(OmniboxTextFieldIOS* field,
                  WebOmniboxEditController* controller,
                  ios::ChromeBrowserState* browser_state,
                  id<PreloadProvider> prerender,
                  id<OmniboxPopupPositioner> positioner);
   ~OmniboxViewIOS() override;
 
+  // Returns a color representing |security_level|, adjusted based on whether
+  // the browser is in Incognito mode.
+  static UIColor* GetSecureTextColor(
+      security_state::SecurityLevel security_level,
+      bool in_dark_mode);
+
   // OmniboxView implementation.
   void OpenMatch(const AutocompleteMatch& match,
                  WindowOpenDisposition disposition,
                  const GURL& alternate_nav_url,
                  const base::string16& pasted_text,
                  size_t selected_line) override;
   base::string16 GetText() const override;
   void SetWindowTextAndCaretPos(const base::string16& text,
                                 size_t caret_pos,
                                 bool update_popup,
@@ skipping 77 matching lines @@
 
  protected:
   int GetOmniboxTextLength() const override;
   void EmphasizeURLComponents() override;
 
  private:
   // Calculates text attributes according to |display_text| and
   // returns them in an autoreleased object.
   NSAttributedString* ApplyTextAttributes(const base::string16& text);
 
+  void SetEmphasis(bool emphasize, const gfx::Range& range) override;
+  void UpdateSchemeStyle(const gfx::Range& scheme_range) override;
+
   // Removes the query refinement chip from the omnibox.
   void RemoveQueryRefinementChip();
 
   // Returns true if user input should currently be ignored.  On iOS7,
   // modifying the contents of a text field while Siri is pending leads to a
   // UIKit crash.  In order to sidestep that crash, OmniboxViewIOS checks that
   // voice search is not pending before attempting to process user actions that
   // may modify text field contents.
   // TODO(crbug.com/303212): Remove this workaround once the crash is fixed.
   bool ShouldIgnoreUserInputDueToPendingVoiceSearch();
@@ skipping 11 matching lines @@
   NSRange old_selection_;
 
   // TODO(rohitrao): This is a monster hack, needed because closing the popup
   // ends up inadvertently triggering a new round of autocomplete.  Fix the
   // underlying problem, which is that textDidChange: is called when closing the
   // popup, and then remove this hack.  b/5877366.
   BOOL ignore_popup_updates_;
 
   // Bridges delegate method calls from |field_| to C++ land.
   base::scoped_nsobject<AutocompleteTextFieldDelegate> field_delegate_;
+
+  // Temporary pointer to the attributed display string, stored as color and
+  // other emphasis attributes are applied by the superclass.
+  NSMutableAttributedString* attributing_display_string_;  // weak
 };
 
 #endif  // IOS_CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_VIEW_IOS_H_