Replace ObjCPropertyReleaser with ReleaseProperties() project-wide.

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

Index: ios/chrome/browser/ui/ntp/new_tab_page_view.mm
diff --git a/ios/chrome/browser/ui/ntp/new_tab_page_view.mm b/ios/chrome/browser/ui/ntp/new_tab_page_view.mm
index 7f9f7ab87e63cfe169c902b229e1c613ae416218..7c675c621e2c9062e548b6c215dbb3cfeb5c8fc1 100644
--- a/ios/chrome/browser/ui/ntp/new_tab_page_view.mm
+++ b/ios/chrome/browser/ui/ntp/new_tab_page_view.mm
@@ -5,21 +5,13 @@
 #import "ios/chrome/browser/ui/ntp/new_tab_page_view.h"
 
 #include "base/logging.h"
-#include "base/mac/objc_property_releaser.h"
+#include "base/mac/objc_release_properties.h"
 #import "ios/chrome/browser/ui/ntp/new_tab_page_bar.h"
 #import "ios/chrome/browser/ui/ntp/new_tab_page_bar_item.h"
 #import "ios/chrome/browser/ui/rtl_geometry.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 
-@implementation NewTabPageView {
- @private
-  // The objects pointed to by |tabBar_| and |scrollView_| are owned as
-  // subviews already.
-  __unsafe_unretained NewTabPageBar* tabBar_;     // weak
-  __unsafe_unretained UIScrollView* scrollView_;  // weak
-
-  base::mac::ObjCPropertyReleaser propertyReleaser_NewTabPageView_;
-}
+@implementation NewTabPageView
 
 @synthesize scrollView = scrollView_;
 @synthesize tabBar = tabBar_;
@@ -29,7 +21,6 @@
                     andTabBar:(NewTabPageBar*)tabBar {
   self = [super initWithFrame:frame];
   if (self) {
-    propertyReleaser_NewTabPageView_.Init(self, [NewTabPageView class]);
     [self addSubview:scrollView];
     [self addSubview:tabBar];
     scrollView_ = scrollView;
@@ -48,6 +39,11 @@
   return nil;
 }
 
+- (void)dealloc {
+  base::mac::ReleaseProperties(self);
+  [super dealloc];
+}
+
 - (void)setFrame:(CGRect)frame {
   // When transitioning the iPhone xib to an iPad idiom, the setFrame call below
   // can sometimes fire a scrollViewDidScroll event which changes the