Use correct tint color for placeholder in non-incognito.

Use the correct color scheme instead of always using incognito color
scheme when setting the placeholder color.

Bug: 859553
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: If6146f5b9f0c0c16833d058e9a5b12534314a09b
Reviewed-on: https://chromium-review.googlesource.com/1126100Reviewed-by: Elodie Banel <lod@chromium.org>
Commit-Queue: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572601}

ios/chrome/browser/ui/location_bar/location_bar_steady_view.mm

@@ -286,7 +286,7 @@ const CGFloat kFontSize = 17.0f;
   [self updateAccessibility];
 }
 
-#pragma mark - UIAccessibilityContainer]
+#pragma mark - UIAccessibilityContainer
 
 - (NSArray*)accessibilityElements {
   return self.accessibleElements;

ios/chrome/browser/ui/location_bar/location_bar_view_controller.mm

@@ -209,8 +209,10 @@ typedef NS_ENUM(int, TrailingButtonState) {
     // Display a fake "placeholder".
     NSString* placeholderString =
         l10n_util::GetNSString(IDS_OMNIBOX_EMPTY_HINT);
-    UIColor* placeholderColor =
-        [LocationBarSteadyViewColorScheme incognitoScheme].placeholderColor;
+    LocationBarSteadyViewColorScheme* scheme =
+        self.incognito ? [LocationBarSteadyViewColorScheme incognitoScheme]
+                       : [LocationBarSteadyViewColorScheme standardScheme];
+    UIColor* placeholderColor = scheme.placeholderColor;
     self.locationBarSteadyView.locationLabel.attributedText = [
         [NSAttributedString alloc]
         initWithString:placeholderString