[ObjC ARC] Converts ios/chrome/browser/ui/find_bar:find_bar to ARC.

ios/chrome/browser/ui/find_bar/find_bar_controller_ios.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/ui/find_bar/find_bar_controller_ios.h"
 
 #include "base/format_macros.h"
 #include "base/i18n/rtl.h"
 #include "base/ios/ios_util.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/foundation_util.h"
-#include "base/mac/objc_property_releaser.h"
-#include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/find_in_page/find_in_page_controller.h"
 #import "ios/chrome/browser/find_in_page/find_in_page_model.h"
 #import "ios/chrome/browser/ui/UIView+SizeClassSupport.h"
 #import "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
 #import "ios/chrome/browser/ui/find_bar/find_bar_view.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "ui/base/resource/resource_bundle.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 NSString* const kFindInPageContainerViewId = @"kFindInPageContainerViewId";
 
 namespace {
 
 // Find Bar height.
 // Right padding on iPad find bar.
 const CGFloat kFindBarIPhoneHeight = 56;
 const CGFloat kFindBarIPadHeight = 62;
 
 // Find Bar animation drop down duration.
 const CGFloat kAnimationDuration = 0.15;
 
 // For the first |kSearchDelayChars| characters, delay by |kSearchLongDelay|
 // For the remaining characters, delay by |kSearchShortDelay|.
 const NSUInteger kSearchDelayChars = 3;
 const NSTimeInterval kSearchLongDelay = 1.0;
 const NSTimeInterval kSearchShortDelay = 0.100;
 
 }  // anonymous namespace
 
 #pragma mark - FindBarControllerIOS
 
-@interface FindBarControllerIOS ()<UITextFieldDelegate> {
-  base::mac::ObjCPropertyReleaser _propertyReleaser_FindInPageController;
-}
+@interface FindBarControllerIOS ()<UITextFieldDelegate>
 
 // Set up iPad UI
 - (void)setUpIPad;
 // Set up iPhone UI
 - (void)setUpIPhone;
 // Animate find bar to iPad top right, or, when possible, to align find bar
 // horizontally with |alignmentFrame|.
 - (void)showIPadFindBarView:(BOOL)animate
                    intoView:(UIView*)parentView
                   withFrame:(CGRect)targetFrame
@@ skipping 17 matching lines @@
 // Selects text in such way that selection menu does not appear and
 // a11y label is read. When -[UITextField selectAll:] is used, iOS
 // will read "Select All" instead of a11y label.
 - (void)selectAllText;
 
 // Redefined to be readwrite. This view acts as background for |findBarView| and
 // contains it as a subview.
 @property(nonatomic, readwrite, strong) UIView* view;
 // The view containing all the buttons and textfields that is common between
 // iPhone and iPad.
-@property(nonatomic, retain) FindBarView* findBarView;
+@property(nonatomic, strong) FindBarView* findBarView;
 // Typing delay timer.
-@property(nonatomic, retain) NSTimer* delayTimer;
+@property(nonatomic, strong) NSTimer* delayTimer;
 // Yes if incognito.
 @property(nonatomic, assign) BOOL isIncognito;
 @end
 
 @implementation FindBarControllerIOS
 
 @synthesize view = _view;
 @synthesize findBarView = _findBarView;
 @synthesize delayTimer = _delayTimer;
 @synthesize isIncognito = _isIncognito;
 
 #pragma mark - Lifecycle
 
 - (instancetype)initWithIncognito:(BOOL)isIncognito {
   self = [super init];
   if (self) {
-    _propertyReleaser_FindInPageController.Init(self,
-                                                [FindBarControllerIOS class]);
     _isIncognito = isIncognito;
   }
   return self;
 }
 
 #pragma mark View Setup & Teardown
 
-- (UIView*)newFindBarView {
+- (UIView*)constructFindBarView {
   BOOL isIPad = IsIPadIdiom();
   UIView* findBarBackground = nil;
   if (isIPad) {
     // Future self.view. Contains only |contentView|. Is an image view that is
     // typecast elsewhere but always is exposed as a UIView.
     findBarBackground =
         [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 345, 62)];
     findBarBackground.backgroundColor = [UIColor clearColor];
     findBarBackground.userInteractionEnabled = YES;
   } else {
     findBarBackground =
         [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 56)];
     findBarBackground.backgroundColor = [UIColor whiteColor];
   }
 
-  self.findBarView = [[[FindBarView alloc]
-      initWithDarkAppearance:self.isIncognito && !IsIPadIdiom()] autorelease];
+  self.findBarView = [[FindBarView alloc]
+      initWithDarkAppearance:self.isIncognito && !IsIPadIdiom()];
   [findBarBackground addSubview:self.findBarView];
   self.findBarView.translatesAutoresizingMaskIntoConstraints = NO;
-  base::scoped_nsobject<NSMutableArray> constraints(
-      [[NSMutableArray alloc] init]);
+  NSMutableArray* constraints = [[NSMutableArray alloc] init];
   [constraints addObjectsFromArray:@[
     [self.findBarView.trailingAnchor
         constraintEqualToAnchor:findBarBackground.trailingAnchor],
     [self.findBarView.leadingAnchor
         constraintEqualToAnchor:findBarBackground.leadingAnchor],
     [self.findBarView.heightAnchor constraintEqualToConstant:56.0f]
   ]];
 
   if (isIPad) {
     [constraints
@@ skipping 16 matching lines @@
                                   action:@selector(hideKeyboard:)
                         forControlEvents:UIControlEventTouchUpInside];
   [self.findBarView.previousButton addTarget:self
                                       action:@selector(hideKeyboard:)
                             forControlEvents:UIControlEventTouchUpInside];
 
   return findBarBackground;
 }
 
 - (void)setupViewInView:(UIView*)view {
-  self.view = [[self newFindBarView] autorelease];
+  self.view = [self constructFindBarView];
 
   // Idiom specific setup.
   if ([self shouldShowCompactSearchBarInView:view])
     [self setUpIPhone];
   else
     [self setUpIPad];
 
   self.view.accessibilityIdentifier = kFindInPageContainerViewId;
 }
 
@@ skipping 287 matching lines @@
                     object:self];
 }
 
 - (BOOL)textFieldShouldReturn:(UITextField*)textField {
   DCHECK(textField == self.findBarView.inputField);
   [self.findBarView.inputField resignFirstResponder];
   return YES;
 }
 
 @end