[Material][Mac] Update the incognito vector icon color to white

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #import "base/mac/mac_util.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 70 matching lines @@
 namespace {
 
 // Vertical space between the bottom edge of the location_bar and the first run
 // bubble arrow point.
 const static int kFirstRunBubbleYOffset = 1;
 
 const int kDefaultIconSize = 16;
 
 // Color of the vector graphic icons when the location bar is dark.
 // SkColorSetARGB(0xCC, 0xFF, 0xFF 0xFF);
-const SkColor kMaterialDarkVectorIconColor = 0xCCFFFFFF;
+const SkColor kMaterialDarkVectorIconColor = SK_ColorWHITE;
 
 }  // namespace
 
 // A temporary class that draws hardcoded HTTP graphic icons for Material
 // design. This class will be removed once the Material icons are available
 // in M53.
 @interface LocationBarImageRep : NSCustomImageRep
 @property(assign, nonatomic) gfx::VectorIconId iconId;
 @property(retain, nonatomic) NSColor* fillColor;
 
@@ skipping 644 matching lines @@
                             : gfx::kGoogleGreen700;
   } else {
     vector_icon_id = omnibox_view_->GetVectorIcon(in_dark_mode);
     if (in_dark_mode) {
       vector_icon_color = SK_ColorWHITE;
     } else {
       vector_icon_color = OmniboxViewMac::BaseTextColorSkia(in_dark_mode);
     }
   }
 
+  // If the theme is dark, then the color should always be
+  // kMaterialDarkVectorIconColor.
+  if (in_dark_mode)
+    vector_icon_color = kMaterialDarkVectorIconColor;
+
   DCHECK(vector_icon_id != gfx::VectorIconId::VECTOR_ICON_NONE);
   NSImage* image =
       [LocationBarImageRep imageForId:vector_icon_id color:vector_icon_color];
 
   location_icon_decoration_->SetImage(image);
   ev_bubble_decoration_->SetImage(image);
   Layout();
 }
 
 void LocationBarViewMac::UpdateColorsToMatchTheme() {
@@ skipping 217 matching lines @@
 
   return zoom_decoration_->UpdateIfNecessary(
       ui_zoom::ZoomController::FromWebContents(web_contents),
       default_zoom_changed, IsLocationBarDark());
 }
 
 void LocationBarViewMac::OnDefaultZoomLevelChanged() {
   if (UpdateZoomDecoration(/*default_zoom_changed=*/true))
     OnDecorationsChanged();
 }