[ObjC ARC] Converts ios/chrome/browser/find_in_page:find_in_page to ARC.Automatically generated A…

ios/chrome/browser/find_in_page/find_in_page_controller.mm

Index: ios/chrome/browser/find_in_page/find_in_page_controller.mm
diff --git a/ios/chrome/browser/find_in_page/find_in_page_controller.mm b/ios/chrome/browser/find_in_page/find_in_page_controller.mm
index ab986d3751021ff640ed8d5db7e4202c290cdac3..91d9d5fff10def49ab2af8de3812eb12661258e7 100644
--- a/ios/chrome/browser/find_in_page/find_in_page_controller.mm
+++ b/ios/chrome/browser/find_in_page/find_in_page_controller.mm
@@ -21,6 +21,10 @@
 #import "ios/web/public/web_state/web_state.h"
 #import "ios/web/public/web_state/web_state_observer_bridge.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 NSString* const kFindBarTextFieldWillBecomeFirstResponderNotification =
     @"kFindBarTextFieldWillBecomeFirstResponderNotification";
 NSString* const kFindBarTextFieldDidResignFirstResponderNotification =
@@ -39,7 +43,8 @@ static NSString* gSearchTerm;
 // The find in page controller delegate.
 @property(nonatomic, readonly) id<FindInPageControllerDelegate> delegate;
 // The web view's scroll view.
-@property(nonatomic, readonly) CRWWebViewScrollViewProxy* webViewScrollView;
+@property(weak, nonatomic, readonly)
+    CRWWebViewScrollViewProxy* webViewScrollView;
 
 // Find in Page text field listeners.
 - (void)findBarTextFieldWillBecomeFirstResponder:(NSNotification*)note;
@@ -89,7 +94,6 @@ static NSString* gSearchTerm;
 @synthesize delegate = _delegate;
 
 + (void)setSearchTerm:(NSString*)string {
-  [gSearchTerm release];
   gSearchTerm = [string copy];
 }
 
@@ -108,7 +112,7 @@ static NSString* gSearchTerm;
     _delegate = delegate;
     _webStateObserverBridge.reset(
         new web::WebStateObserverBridge(webState, self));
-    _webViewProxy.reset([webState->GetWebViewProxy() retain]);
+    _webViewProxy.reset(webState->GetWebViewProxy());
     [[NSNotificationCenter defaultCenter]
         addObserver:self
            selector:@selector(findBarTextFieldWillBecomeFirstResponder:)
@@ -126,7 +130,6 @@ static NSString* gSearchTerm;
 
 - (void)dealloc {
   [[NSNotificationCenter defaultCenter] removeObserver:self];
-  [super dealloc];
 }
 
 - (FindInPageModel*)findInPageModel {
@@ -225,7 +228,7 @@ static NSString* gSearchTerm;
   base::WeakNSObject<FindInPageController> weakSelf(self);
   [_findInPageJsManager pumpWithCompletionHandler:^(BOOL finished,
                                                     CGPoint point) {
-    base::scoped_nsobject<FindInPageController> strongSelf([weakSelf retain]);
+    base::scoped_nsobject<FindInPageController> strongSelf(weakSelf);
     if (finished) {
       [[strongSelf delegate] willAdjustScrollPosition];
       point = [strongSelf limitOverscroll:[strongSelf webViewScrollView]
@@ -241,7 +244,7 @@ static NSString* gSearchTerm;
   [self initFindInPage];
   base::WeakNSObject<FindInPageController> weakSelf(self);
   [_findInPageJsManager nextMatchWithCompletionHandler:^(CGPoint point) {
-    base::scoped_nsobject<FindInPageController> strongSelf([weakSelf retain]);
+    base::scoped_nsobject<FindInPageController> strongSelf(weakSelf);
     [[strongSelf delegate] willAdjustScrollPosition];
     point = [strongSelf limitOverscroll:[strongSelf webViewScrollView]
                                 atPoint:point];
@@ -257,7 +260,7 @@ static NSString* gSearchTerm;
   [self initFindInPage];
   base::WeakNSObject<FindInPageController> weakSelf(self);
   [_findInPageJsManager previousMatchWithCompletionHandler:^(CGPoint point) {
-    base::scoped_nsobject<FindInPageController> strongSelf([weakSelf retain]);
+    base::scoped_nsobject<FindInPageController> strongSelf(weakSelf);
     [[strongSelf delegate] willAdjustScrollPosition];
     point = [strongSelf limitOverscroll:[strongSelf webViewScrollView]
                                 atPoint:point];
@@ -276,7 +279,7 @@ static NSString* gSearchTerm;
   [NSObject cancelPreviousPerformRequestsWithTarget:self];
   base::WeakNSObject<FindInPageController> weakSelf(self);
   ProceduralBlock handler = ^{
-    base::scoped_nsobject<FindInPageController> strongSelf([weakSelf retain]);
+    base::scoped_nsobject<FindInPageController> strongSelf(weakSelf);
     if (strongSelf) {
       [strongSelf.get().findInPageModel setEnabled:NO];
       web::WebState* webState = [strongSelf webState];