Rename |AddSameSizeConstraint| to |AddSameConstraints|.

ios/chrome/browser/ui/reading_list/reading_list_toolbar.mm

 // Copyright 2016 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/ui/reading_list/reading_list_toolbar.h"
 
 #include "base/logging.h"
 #import "ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
 #include "ios/chrome/browser/ui/rtl_geometry.h"
@@ skipping 172 matching lines @@
       _editButtonContainer, _deleteButtonContainer, _deleteAllButtonContainer,
       _markButtonContainer, _cancelButtonContainer
     ]];
     _stackView.axis = UILayoutConstraintAxisHorizontal;
     _stackView.alignment = UIStackViewAlignmentFill;
     _stackView.distribution = UIStackViewDistributionFillEqually;
     _stackView.spacing = kHorizontalSpacing;
 
     [self addSubview:_stackView];
     _stackView.translatesAutoresizingMaskIntoConstraints = NO;
-    AddSameSizeConstraint(_stackView, self);
+    AddSameConstraints(_stackView, self);
     _stackView.layoutMargins =
         UIEdgeInsetsMake(0, kHorizontalMargin, 0, kHorizontalMargin);
     _stackView.layoutMarginsRelativeArrangement = YES;
 
     self.backgroundColor = [UIColor whiteColor];
     [[self layer] setShadowOpacity:kShadowOpacity];
     [self setEditing:NO];
   }
   return self;
 }
@@ skipping 115 matching lines @@
                      16) {
         [self.heightDelegate toolbar:self onHeightChanged:ExpandedHeight];
         return;
       }
     }
   }
   [self.heightDelegate toolbar:self onHeightChanged:NormalHeight];
 }
 
 @end