Replace ObjCPropertyReleaser with ReleaseProperties() project-wide.

ios/chrome/browser/ui/ntp/new_tab_page_bar.mm

Index: ios/chrome/browser/ui/ntp/new_tab_page_bar.mm
diff --git a/ios/chrome/browser/ui/ntp/new_tab_page_bar.mm b/ios/chrome/browser/ui/ntp/new_tab_page_bar.mm
index 760902a83eec023a970b8b6a8d630b6b56e181e6..5d9a7fdeb7586440cd5c53c9abcc060ce4c9c183 100644
--- a/ios/chrome/browser/ui/ntp/new_tab_page_bar.mm
+++ b/ios/chrome/browser/ui/ntp/new_tab_page_bar.mm
@@ -8,7 +8,7 @@
 #include <cmath>
 
 #include "base/logging.h"
-#include "base/mac/objc_property_releaser.h"
+#include "base/mac/objc_release_properties.h"
 #include "base/mac/scoped_nsobject.h"
 #import "ios/chrome/browser/ui/bookmarks/bookmark_utils_ios.h"
 #import "ios/chrome/browser/ui/ntp/new_tab_page_bar_button.h"
@@ -36,7 +36,6 @@ const int kNumberOfTabsIncognito = 2;
 }
 
 @property(nonatomic, readwrite, retain) NSArray* buttons;
-@property(nonatomic, readwrite, retain) UIButton* popupButton;
 
 - (void)setup;
 - (void)calculateButtonWidth;
@@ -46,13 +45,9 @@ const int kNumberOfTabsIncognito = 2;
 @end
 
 @implementation NewTabPageBar {
-  // Tabbar buttons.
-  NSArray* buttons_;  // UIButton
-  NSArray* items_;    // NewTabPageBarItem
-  // Which button is currently selected.
+  NSArray* buttons_;
+  NSArray* items_;
   NSUInteger selectedIndex_;
-  // Popup button helper, for iPhone labels.
-  UIButton* popupButton_;
   // Don't allow tabbar animations on startup, only after first tap.
   BOOL canAnimate_;
   id<NewTabPageBarDelegate> delegate_;  // weak
@@ -66,13 +61,10 @@ const int kNumberOfTabsIncognito = 2;
   CGFloat buttonWidth_;
   // Percentage overlay sits over tab bar buttons.
   CGFloat overlayPercentage_;
-
-  base::mac::ObjCPropertyReleaser propertyReleaser_NewTabPageBar_;
 }
 
 @synthesize items = items_;
 @synthesize selectedIndex = selectedIndex_;
-@synthesize popupButton = popupButton_;
 @synthesize buttons = buttons_;
 @synthesize delegate = delegate_;
 @synthesize overlayPercentage = overlayPercentage_;
@@ -94,7 +86,6 @@ const int kNumberOfTabsIncognito = 2;
 }
 
 - (void)setup {
-  propertyReleaser_NewTabPageBar_.Init(self, [NewTabPageBar class]);
   self.selectedIndex = NSNotFound;
   canAnimate_ = NO;
   self.autoresizingMask =
@@ -133,6 +124,11 @@ const int kNumberOfTabsIncognito = 2;
   self.contentMode = UIViewContentModeRedraw;
 }
 
+- (void)dealloc {
+  base::mac::ReleaseProperties(self);
+  [super dealloc];
+}
+
 - (void)layoutSubviews {
   [super layoutSubviews];