Stops calling deprecated widget vibrancy effect APIs on iOS 13.

BUG=1086653

Change-Id: Id91956ebcf96d1058e987b025c3dddc6620916de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2216590Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772234}

ios/chrome/content_widget_extension/most_visited_tile_view.mm

@@ -6,6 +6,7 @@
 
 #import <NotificationCenter/NotificationCenter.h>
 
+#include "base/check.h"
 #import "ios/chrome/common/ui/favicon/favicon_view.h"
 #import "ios/chrome/common/ui/util/constraints_ui_util.h"
 
@@ -35,12 +36,14 @@ const CGFloat kTileWidth = 73;
 - (instancetype)init {
   self = [super initWithFrame:CGRectZero];
   if (self) {
-    UIVibrancyEffect* labelEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+    UIVibrancyEffect* labelEffect = nil;
     if (@available(iOS 13, *)) {
       labelEffect = [UIVibrancyEffect
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleSecondaryLabel];
+    } else {
+      labelEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
     }
+    DCHECK(labelEffect);
 
     UIVisualEffectView* titleLabelEffectView =
         [[UIVisualEffectView alloc] initWithEffect:labelEffect];

ios/chrome/search_widget_extension/copied_content_view.mm

@@ -56,14 +56,10 @@ const CGFloat kURLButtonMargin = 10;
                   action:actionSelector
         forControlEvents:UIControlEventTouchUpInside];
 
-    UIVibrancyEffect* primaryEffect =
-        [UIVibrancyEffect widgetPrimaryVibrancyEffect];
-    UIVibrancyEffect* secondaryEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
-    UIVibrancyEffect* backgroundEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
-    UIVibrancyEffect* hairlineEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+    UIVibrancyEffect* primaryEffect = nil;
+    UIVibrancyEffect* secondaryEffect = nil;
+    UIVibrancyEffect* backgroundEffect = nil;
+    UIVibrancyEffect* hairlineEffect = nil;
     if (@available(iOS 13, *)) {
       primaryEffect = [UIVibrancyEffect
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleLabel];
@@ -73,7 +69,16 @@ const CGFloat kURLButtonMargin = 10;
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleTertiaryFill];
       hairlineEffect = [UIVibrancyEffect
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleSeparator];
+    } else {
+      primaryEffect = [UIVibrancyEffect widgetPrimaryVibrancyEffect];
+      secondaryEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+      backgroundEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+      hairlineEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
     }
+    DCHECK(primaryEffect);
+    DCHECK(secondaryEffect);
+    DCHECK(backgroundEffect);
+    DCHECK(hairlineEffect);
 
     _primaryEffectView =
         [[UIVisualEffectView alloc] initWithEffect:primaryEffect];

ios/chrome/search_widget_extension/search_action_view.mm

@@ -32,12 +32,9 @@ const CGFloat kIconSize = 35;
   if (self) {
     self.translatesAutoresizingMaskIntoConstraints = NO;
 
-    UIVibrancyEffect* primaryEffect =
-        [UIVibrancyEffect widgetPrimaryVibrancyEffect];
-    UIVibrancyEffect* secondaryEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
-    UIVibrancyEffect* iconBackgroundEffect =
-        [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+    UIVibrancyEffect* primaryEffect = nil;
+    UIVibrancyEffect* secondaryEffect = nil;
+    UIVibrancyEffect* iconBackgroundEffect = nil;
     if (@available(iOS 13, *)) {
       primaryEffect = [UIVibrancyEffect
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleLabel];
@@ -45,7 +42,14 @@ const CGFloat kIconSize = 35;
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleSecondaryLabel];
       iconBackgroundEffect = [UIVibrancyEffect
           widgetEffectForVibrancyStyle:UIVibrancyEffectStyleTertiaryFill];
+    } else {
+      primaryEffect = [UIVibrancyEffect widgetPrimaryVibrancyEffect];
+      secondaryEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
+      iconBackgroundEffect = [UIVibrancyEffect widgetSecondaryVibrancyEffect];
     }
+    DCHECK(primaryEffect);
+    DCHECK(secondaryEffect);
+    DCHECK(iconBackgroundEffect);
 
     UIVisualEffectView* primaryEffectView =
         [[UIVisualEffectView alloc] initWithEffect:primaryEffect];