Replace ObjCPropertyReleaser with ReleaseProperties() project-wide.

ios/chrome/browser/snapshots/snapshot_cache.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 "ios/chrome/browser/snapshots/snapshot_cache.h"
 
 #import <UIKit/UIKit.h>
 
 #include "base/critical_closure.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/mac/bind_objc_block.h"
-#include "base/mac/objc_property_releaser.h"
+#include "base/mac/objc_release_properties.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/task_runner_util.h"
 #include "base/threading/thread_restrictions.h"
 #include "ios/chrome/browser/experimental_flags.h"
 #import "ios/chrome/browser/snapshots/lru_cache.h"
 #import "ios/chrome/browser/snapshots/snapshot_cache_internal.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
@@ skipping 123 matching lines @@
 
   // Session ID of most recent pending grey snapshot request.
   base::scoped_nsobject<NSString> mostRecentGreySessionId_;
   // Block used by pending request for a grey snapshot.
   base::scoped_nsprotocol<GreyBlock> mostRecentGreyBlock_;
 
   // Session ID and correspoinding UIImage for the snapshot that will likely
   // be requested to be saved to disk when the application is backgrounded.
   base::scoped_nsobject<NSString> backgroundingImageSessionId_;
   base::scoped_nsobject<UIImage> backgroundingColorImage_;
-
-  base::mac::ObjCPropertyReleaser propertyReleaser_SnapshotCache_;
 }
 
 @synthesize pinnedIDs = pinnedIDs_;
 
 + (SnapshotCache*)sharedInstance {
   static SnapshotCache* instance = [[SnapshotCache alloc] init];
   return instance;
 }
 
 - (id)init {
   if ((self = [super init])) {
     DCHECK_CURRENTLY_ON(web::WebThread::UI);
-    propertyReleaser_SnapshotCache_.Init(self, [SnapshotCache class]);
-
     if ([self usesLRUCache]) {
       lruCache_.reset(
           [[LRUCache alloc] initWithCacheSize:kLRUCacheMaxCapacity]);
     } else {
       imageDictionary_.reset(
           [[NSMutableDictionary alloc] initWithCapacity:kCacheInitialCapacity]);
     }
     [[NSNotificationCenter defaultCenter]
         addObserver:self
            selector:@selector(handleLowMemory)
@@ skipping 19 matching lines @@
                 name:UIApplicationDidReceiveMemoryWarningNotification
               object:nil];
   [[NSNotificationCenter defaultCenter]
       removeObserver:self
                 name:UIApplicationDidEnterBackgroundNotification
               object:nil];
   [[NSNotificationCenter defaultCenter]
       removeObserver:self
                 name:UIApplicationDidBecomeActiveNotification
               object:nil];
+  base::mac::ReleaseProperties(self);
   [super dealloc];
 }
 
 + (CGFloat)snapshotScaleForDevice {
   // On handset, the color snapshot is used for the stack view, so the scale of
   // the snapshot images should match the scale of the device.
   // On tablet, the color snapshot is only used to generate the grey snapshot,
   // which does not have to be high quality, so use scale of 1.0 on all tablets.
   if (IsIPadIdiom()) {
     return 1.0;
@@ skipping 367 matching lines @@
 
 - (BOOL)hasGreyImageInMemory:(NSString*)sessionID {
   return [greyImageDictionary_ objectForKey:sessionID] != nil;
 }
 
 - (NSUInteger)lruCacheMaxSize {
   return [lruCache_ maxCacheSize];
 }
 
 @end