Upstream Chrome on iOS source code [5/11].

ios/chrome/browser/ui/first_run/static_file_view_controller.mm

+// Copyright 2013 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.
+
+#include "ios/chrome/browser/ui/first_run/static_file_view_controller.h"
+
+#include <WebKit/WebKit.h>
+
+#include "base/logging.h"
+#include "base/mac/scoped_nsobject.h"
+#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+#import "ios/chrome/browser/ui/material_components/utils.h"
+#include "ios/chrome/browser/ui/rtl_geometry.h"
+#import "ios/third_party/material_components_ios/src/components/AppBar/src/MaterialAppBar.h"
+#import "ios/third_party/material_components_ios/src/components/FlexibleHeader/src/MaterialFlexibleHeader.h"
+#import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
+#import "ios/web/public/web_view_creation_util.h"
+
+@interface StaticFileViewController ()<UIScrollViewDelegate> {
+  ios::ChromeBrowserState* _browserState;  // weak
+  base::scoped_nsobject<NSURL> _URL;
+  // YES if the header has been configured for RTL.
+  BOOL _headerLaidOutForRTL;
+  // The web view used to display the static content.
+  base::scoped_nsobject<WKWebView> _webView;
+  // The header.
+  base::scoped_nsobject<MDCAppBar> _appBar;
+}
+
+@end
+
+@implementation StaticFileViewController
+
+- (instancetype)initWithBrowserState:(ios::ChromeBrowserState*)browserState
+                                 URL:(NSURL*)URL {
+  DCHECK(browserState);
+  DCHECK(URL);
+  self = [super init];
+  if (self) {
+    _appBar.reset([[MDCAppBar alloc] init]);
+    [self addChildViewController:[_appBar headerViewController]];
+    _browserState = browserState;
+    _URL.reset([URL retain]);
+  }
+  return self;
+}
+
+- (void)dealloc {
+  [_webView scrollView].delegate = nil;
+  [super dealloc];
+}
+
+#pragma mark - UIViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+
+  _webView.reset([web::BuildWKWebView(self.view.bounds, _browserState) retain]);
+  [_webView setAutoresizingMask:UIViewAutoresizingFlexibleWidth |
+                                UIViewAutoresizingFlexibleHeight];
+
+  // Loads terms of service into the web view.
+  [_webView loadRequest:[NSURLRequest requestWithURL:_URL]];
+  [_webView setBackgroundColor:[UIColor whiteColor]];
+  [self.view addSubview:_webView];
+
+  ConfigureAppBarWithCardStyle(_appBar);
+  [_appBar headerViewController].headerView.trackingScrollView =
+      [_webView scrollView];
+  [_webView scrollView].delegate = [_appBar headerViewController];
+
+  // Add the app bar at the end.
+  [_appBar addSubviewsToParent];
+}
+
+@end