Bring the feedback button to the Mac sad tab

chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.mm

-// Copyright (c) 2011 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 "chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h"
-
-#import "chrome/browser/ui/cocoa/tab_contents/sad_tab_view_cocoa.h"
-#include "chrome/common/url_constants.h"
-#include "chrome/grit/generated_resources.h"
-#include "components/strings/grit/components_strings.h"
-#include "content/public/browser/web_contents.h"
-
-using content::OpenURLParams;
-using content::Referrer;
-
-namespace chrome {
-
-SadTab* SadTab::Create(content::WebContents* web_contents, SadTabKind kind) {
-  return new SadTabCocoa(web_contents);
-}
-
-SadTabCocoa::SadTabCocoa(content::WebContents* web_contents)
-    : web_contents_(web_contents) {
-}
-
-SadTabCocoa::~SadTabCocoa() {
-}
-
-void SadTabCocoa::Show() {
-  sad_tab_controller_.reset(
-      [[SadTabController alloc] initWithWebContents:web_contents_]);
-}
-
-void SadTabCocoa::Close() {
-  [[sad_tab_controller_ view] removeFromSuperview];
-}
-
-}  // namespace chrome
-
-@interface SadTabController ()<SadTabViewDelegate>
-@end
-
-@implementation SadTabController {
-  content::WebContents* webContents_;
-  SadTabView* sadTabView_;
-}
-
-- (id)initWithWebContents:(content::WebContents*)webContents {
-  if ((self = [super init])) {
-    DCHECK(webContents);
-    webContents_ = webContents;
-
-    if (webContents_) {  // NULL in unit_tests.
-      NSView* ns_view = webContents_->GetNativeView();
-      [[self view] setAutoresizingMask:
-          (NSViewWidthSizable | NSViewHeightSizable)];
-      [ns_view addSubview:[self view]];
-      [[self view] setFrame:[ns_view bounds]];
-    }
-  }
-
-  return self;
-}
-
-- (void)dealloc {
-  sadTabView_.delegate = nil;
-  [super dealloc];
-}
-
-- (void)loadView {
-  sadTabView_ = [[SadTabView new] autorelease];
-  sadTabView_.delegate = self;
-
-  [sadTabView_ setTitle:IDS_SAD_TAB_TITLE];
-  [sadTabView_ setMessage:IDS_SAD_TAB_MESSAGE];
-  [sadTabView_ setButtonTitle:IDS_SAD_TAB_RELOAD_LABEL];
-  [sadTabView_ setHelpLinkTitle:IDS_SAD_TAB_LEARN_MORE_LINK
-                            URL:@(chrome::kCrashReasonURL)];
-
-  self.view = sadTabView_;
-}
-
-- (content::WebContents*)webContents {
-  return webContents_;
-}
-
-- (void)sadTabViewButtonClicked:(SadTabView*)sadTabView {
-  webContents_->GetController().Reload(true);
-}
-
-- (void)sadTabView:(SadTabView*)sadTabView
-    helpLinkClickedWithURL:(NSString*)url {
-  OpenURLParams params(GURL(url.UTF8String), Referrer(),
-                       WindowOpenDisposition::CURRENT_TAB,
-                       ui::PAGE_TRANSITION_LINK, false);
-  webContents_->OpenURL(params);
-}
-
-@end