Remove CRWNetworkActivityIndicatorManager.

ios/web/crw_network_activity_indicator_manager.mm

Index: ios/web/crw_network_activity_indicator_manager.mm
diff --git a/ios/web/crw_network_activity_indicator_manager.mm b/ios/web/crw_network_activity_indicator_manager.mm
deleted file mode 100644
index 36be81b950b659fd830943b66a45311082a5f325..0000000000000000000000000000000000000000
--- a/ios/web/crw_network_activity_indicator_manager.mm
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright 2014 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/web/crw_network_activity_indicator_manager.h"
-
-#import <UIKit/UIKit.h>
-
-#include "base/logging.h"
-#include "base/mac/scoped_nsobject.h"
-#include "base/threading/thread_checker.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-@interface CRWNetworkActivityIndicatorManager () {
-  base::scoped_nsobject<NSMutableDictionary> _groupCounts;
-  NSUInteger _totalCount;
-  base::ThreadChecker _threadChecker;
-}
-
-@end
-
-@implementation CRWNetworkActivityIndicatorManager
-
-+ (CRWNetworkActivityIndicatorManager*)sharedInstance {
-  static CRWNetworkActivityIndicatorManager* instance =
-      [[CRWNetworkActivityIndicatorManager alloc] init];
-  return instance;
-}
-
-- (instancetype)init {
-  self = [super init];
-  if (self) {
-    _groupCounts.reset([[NSMutableDictionary alloc] init]);
-    _totalCount = 0;
-  }
-  return self;
-}
-
-- (void)startNetworkTaskForGroup:(NSString*)group {
-  [self startNetworkTasks:1 forGroup:group];
-}
-
-- (void)stopNetworkTaskForGroup:(NSString*)group {
-  [self stopNetworkTasks:1 forGroup:group];
-}
-
-- (void)startNetworkTasks:(NSUInteger)numTasks forGroup:(NSString*)group {
-  DCHECK(_threadChecker.CalledOnValidThread());
-  DCHECK(group);
-  DCHECK_GT(numTasks, 0U);
-  NSUInteger count = 0;
-  NSNumber* number = [_groupCounts objectForKey:group];
-  if (number) {
-    count = [number unsignedIntegerValue];
-    DCHECK_GT(count, 0U);
-  }
-  count += numTasks;
-  [_groupCounts setObject:@(count) forKey:group];
-  _totalCount += numTasks;
-  if (_totalCount == numTasks) {
-    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
-  }
-}
-
-- (void)stopNetworkTasks:(NSUInteger)numTasks forGroup:(NSString*)group {
-  DCHECK(_threadChecker.CalledOnValidThread());
-  DCHECK(group);
-  DCHECK_GT(numTasks, 0U);
-  NSNumber* number = [_groupCounts objectForKey:group];
-  DCHECK(number);
-  NSUInteger count = [number unsignedIntegerValue];
-  DCHECK(count >= numTasks);
-  count -= numTasks;
-  if (count == 0) {
-    [_groupCounts removeObjectForKey:group];
-  } else {
-    [_groupCounts setObject:@(count) forKey:group];
-  }
-  _totalCount -= numTasks;
-  if (_totalCount == 0) {
-    [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
-  }
-}
-
-- (NSUInteger)clearNetworkTasksForGroup:(NSString*)group {
-  DCHECK(_threadChecker.CalledOnValidThread());
-  DCHECK(group);
-  NSNumber* number = [_groupCounts objectForKey:group];
-  if (!number) {
-    return 0;
-  }
-  NSUInteger count = [number unsignedIntegerValue];
-  DCHECK_GT(count, 0U);
-  [self stopNetworkTasks:count forGroup:group];
-  return count;
-}
-
-- (NSUInteger)numNetworkTasksForGroup:(NSString*)group {
-  DCHECK(_threadChecker.CalledOnValidThread());
-  DCHECK(group);
-  NSNumber* number = [_groupCounts objectForKey:group];
-  if (!number) {
-    return 0;
-  }
-  return [number unsignedIntegerValue];
-}
-
-- (NSUInteger)numTotalNetworkTasks {
-  DCHECK(_threadChecker.CalledOnValidThread());
-  return _totalCount;
-}
-
-@end