Moves include of objc_property_releaser out of a header.

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/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"
 #include "ios/web/public/web_thread.h"
 
 @interface SnapshotCache ()
 // Returns the directory where the thumbnails are saved.
 + (base::FilePath)cacheDirectory;
 // Returns the directory where the thumbnails were stored in M28 and earlier.
 - (base::FilePath)oldCacheDirectory;
@@ skipping 91 matching lines @@
   if (!colorImage)
     colorImage.reset([ReadImageFromDisk(colorPath) retain]);
   if (!colorImage)
     return;
   base::scoped_nsobject<UIImage> greyImage([GreyImage(colorImage) retain]);
   WriteImageToDisk(greyImage, greyPath);
 }
 
 }  // anonymous namespace
 
-@implementation SnapshotCache
+@implementation SnapshotCache {
+  // Dictionary to hold color snapshots in memory. n.b. Color snapshots are not
+  // kept in memory on tablets.
+  base::scoped_nsobject<NSMutableDictionary> imageDictionary_;
+
+  // Cache to hold color snapshots in memory. n.b. Color snapshots are not
+  // kept in memory on tablets. It is used in place of the imageDictionary_ when
+  // the LRU cache snapshot experiment is enabled.
+  base::scoped_nsobject<LRUCache> lruCache_;
+
+  // Temporary dictionary to hold grey snapshots for tablet side swipe. This
+  // will be nil before -createGreyCache is called and after -removeGreyCache
+  // is called.
+  base::scoped_nsobject<NSMutableDictionary> greyImageDictionary_;
+  NSSet* pinnedIDs_;
+
+  // 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])) {
@@ skipping 429 matching lines @@
 
 - (BOOL)hasGreyImageInMemory:(NSString*)sessionID {
   return [greyImageDictionary_ objectForKey:sessionID] != nil;
 }
 
 - (NSUInteger)lruCacheMaxSize {
   return [lruCache_ maxCacheSize];
 }
 
 @end