[ios] Hoists the FindInPageModel up into the controller.

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 dbb5c17467635a46c641b3bf11f7015097c83810..ad1441dbb9671c96c711d007b43d8e6c86c28fe9 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
@@ -90,6 +90,7 @@ static NSString* gSearchTerm;
 }
 
 @synthesize delegate = _delegate;
+@synthesize findInPageModel = _findInPageModel;
 
 + (void)setSearchTerm:(NSString*)string {
   gSearchTerm = [string copy];
@@ -103,9 +104,11 @@ static NSString* gSearchTerm;
               delegate:(id<FindInPageControllerDelegate>)delegate {
   self = [super init];
   if (self) {
+    _findInPageModel = [[FindInPageModel alloc] init];
     _findInPageJsManager = base::mac::ObjCCastStrict<JsFindinpageManager>(
         [webState->GetJSInjectionReceiver()
             instanceOfClass:[JsFindinpageManager class]]);
+    _findInPageJsManager.findInPageModel = _findInPageModel;

[justincohen, 2017/02/13 18:09:36]

Does this need to be nilled out on dealloc of fipcontroller?

[rohitrao (ping after 24h), 2017/02/14 14:52:49]

I made it a strong reference, so the JS manager will keep the object alive as
long as needed.

     _delegate = delegate;
     _webStateObserverBridge.reset(
         new web::WebStateObserverBridge(webState, self));
@@ -129,10 +132,6 @@ static NSString* gSearchTerm;
   [[NSNotificationCenter defaultCenter] removeObserver:self];
 }
 
-- (FindInPageModel*)findInPageModel {
-  return [_findInPageJsManager findInPageModel];
-}
-
 - (BOOL)canFindInPage {
   return [_webViewProxy hasSearchableTextContent];
 }