Initialize the BrowserContainerView with the right frame.

ios/chrome/browser/ui/browser_view_controller.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/browser_view_controller.h"
 
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <MobileCoreServices/MobileCoreServices.h>
 #import <PassKit/PassKit.h>
 #import <Photos/Photos.h>
@@ skipping 1151 matching lines @@
     }
   }
   [self addSelectedTabWithURL:GURL(kChromeUINewTabURL)
                    transition:ui::PAGE_TRANSITION_TYPED];
 }
 
 #pragma mark - UIViewController methods
 
 // Perform additional set up after loading the view, typically from a nib.
 - (void)viewDidLoad {
   // Duplicate .xib layout for now.

[marq (ping after 24h), 2016/12/20 12:36:36]

I think this comment can be removed now.

-  CGRect initialViewsRect = CGRectMake(0, 30, 320, 430);
+  CGRect initialViewsRect = self.view.frame;
+  initialViewsRect.origin.y += StatusBarHeight();
+  initialViewsRect.size.height -= StatusBarHeight();
   UIViewAutoresizing initialViewAutoresizing =
       UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
 
   self.contentArea = [[[BrowserContainerView alloc]
       initWithFrame:initialViewsRect] autorelease];
   self.contentArea.autoresizingMask = initialViewAutoresizing;
   self.typingShield =
       [[[UIButton alloc] initWithFrame:initialViewsRect] autorelease];
   self.typingShield.autoresizingMask = initialViewAutoresizing;
   [self.typingShield addTarget:self
                         action:@selector(shieldWasTapped:)
               forControlEvents:UIControlEventTouchUpInside];
-  self.view.bounds = CGRectMake(0, 0, 320, 460);
   self.view.autoresizingMask = initialViewAutoresizing;
   self.view.backgroundColor = [UIColor colorWithWhite:0.75 alpha:1.0];
   [self.view addSubview:self.contentArea];
   [self.view addSubview:self.typingShield];
   [super viewDidLoad];
 
   // Install fake status bar for iPad iOS7
   [self installFakeStatusBar];
   [self buildToolbarAndTabStrip];
   [self setUpViewLayout];
@@ skipping 3917 matching lines @@
 
 - (UIView*)voiceSearchButton {
   return _voiceSearchButton;
 }
 
 - (id<LogoAnimationControllerOwner>)logoAnimationControllerOwner {
   return [self currentLogoAnimationControllerOwner];
 }
 
 @end