Make Autofill work again on iPads running iOS 9.

ios/chrome/browser/autofill/form_input_accessory_view.mm

 // 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/chrome/browser/autofill/form_input_accessory_view.h"
 
 #import <QuartzCore/QuartzCore.h>
 
 #include "base/i18n/rtl.h"
 #include "base/ios/weak_nsobject.h"
@@ skipping 100 matching lines @@
   if (self) {
     _delegate.reset(delegate);
     _customView.reset([customView retain]);
     [self initializeViewWithCustomView:_customView
                              leftFrame:leftFrame
                             rightFrame:rightFrame];
   }
   return self;
 }
 
+- (instancetype)initWithFrame:(CGRect)frame customView:(UIView*)customView {
+  self = [super initWithFrame:frame];
+  if (self) {
+    _customView.reset([customView retain]);

[justincohen, 2015/08/19 20:34:19]

Why do we retain this at all

[Justin Donnelly, 2015/08/20 16:38:01]

Don't know. My quick guess would be that something in here used to communicate
with the view but no longer does. How about I circle back around to this in
another CL. I'd prefer to touch as little as possible here.

+    customView.frame =
+        CGRectMake(0, 0, CGRectGetWidth(frame), CGRectGetHeight(frame));
+    [self addSubview:customView];
+
+    [[self class] addBackgroundImageInView:self
+                             withImageName:@"autofill_keyboard_background"];
+  }
+  return self;
+}
+
 #pragma mark -
 #pragma mark UIInputViewAudioFeedback
 
 - (BOOL)enableInputClicksWhenVisible {
   return YES;
 }
 
 #pragma mark -
 #pragma mark Private Methods
 
@@ skipping 231 matching lines @@
   UIImage* image =
       StretchableImageFromUIImage([UIImage imageNamed:imageName], 0, 0);
   base::scoped_nsobject<UIImageView> imageView(
       [[UIImageView alloc] initWithImage:image]);
   [imageView setFrame:CGRectMake(originX, originY, width,
                                  CGRectGetHeight(view.bounds) - originY)];
   [view addSubview:imageView];
 }
 
 @end