Implement the Sync promo in the password bubble on Mac.

chrome/browser/ui/cocoa/passwords/signin_promo_view_controller.mm

+// Copyright 2016 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/passwords/signin_promo_view_controller.h"
+
+#include "base/mac/scoped_nsobject.h"
+#include "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
+#include "chrome/browser/ui/passwords/manage_passwords_bubble_model.h"
+#include "grit/generated_resources.h"
+#import "ui/base/cocoa/controls/hyperlink_text_view.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+@interface SignInPromoViewController () {
+  base::scoped_nsobject<NSButton> _signInButton;
+  base::scoped_nsobject<NSButton> _noButton;
+}
+
+// "Sign In" and "No thanks" button handlers.
+- (void)onSignInClicked:(id)sender;
+- (void)onNoClicked:(id)sender;
+@end
+
+@implementation SignInPromoViewController
+
+- (instancetype)initWithDelegate:
+    (id<BasePasswordsContentViewDelegate>)delegate {
+  return [super initWithDelegate:delegate];
+}
+
+- (NSButton*)defaultButton {
+  return _signInButton;
+}
+
+// ------------------------------------
+// | Sign in to Chrome!               |
+// |                                  |
+// |               [ No ] [ Sign In ] |
+// ------------------------------------
+- (void)loadView {
+  base::scoped_nsobject<NSView> view([[NSView alloc] initWithFrame:NSZeroRect]);
+  // Title.
+  HyperlinkTextView* titleView = TitleBubbleLabelWithLink(
+      [self.delegate model]->title(), gfx::Range(), nil);
+  // Force the text to wrap to fit in the bubble size.
+  int titleWidth = kDesiredBubbleWidth - 2*kFramePadding;
+  [titleView setVerticallyResizable:YES];
+  [titleView setFrameSize:NSMakeSize(titleWidth, MAXFLOAT)];
+  [titleView sizeToFit];
+  [view addSubview:titleView];
+
+  NSString* signInText =
+      l10n_util::GetNSString(IDS_PASSWORD_MANAGER_SIGNIN_PROMO_SIGN_IN);
+  _signInButton.reset([[self addButton:signInText
+                                toView:view
+                                target:self
+                                action:@selector(onSignInClicked:)] retain]);
+  NSString* noText =
+      l10n_util::GetNSString(IDS_PASSWORD_MANAGER_SIGNIN_PROMO_NO_THANKS);
+  _noButton.reset([[self addButton:noText
+                            toView:view
+                            target:self
+                            action:@selector(onNoClicked:)] retain]);
+
+  // Layout the elements, starting at the bottom and moving up.
+  CGFloat curX =
+      kDesiredBubbleWidth - kFramePadding - NSWidth([_signInButton frame]);
+  CGFloat curY = kFramePadding;
+  [_signInButton setFrameOrigin:NSMakePoint(curX, curY)];
+
+  curX -= kRelatedControlHorizontalPadding;
+  curX -= NSWidth([_noButton frame]);
+  [_noButton setFrameOrigin:NSMakePoint(curX, curY)];
+
+  curY = NSMaxY([_noButton frame]) + kUnrelatedControlVerticalPadding;
+  [titleView setFrameOrigin:NSMakePoint(kFramePadding, curY)];
+  [view setFrame:NSMakeRect(0, 0, kDesiredBubbleWidth,
+                            NSMaxY([titleView frame]) + kFramePadding)];
+  [self setView:view];
+}
+
+- (void)onSignInClicked:(id)sender {
+  ManagePasswordsBubbleModel* model = [self.delegate model];
+  if (model)
+    model->OnSignInToChromeClicked();
+  [self.delegate viewShouldDismiss];
+}
+
+- (void)onNoClicked:(id)sender {
+  ManagePasswordsBubbleModel* model = [self.delegate model];
+  if (model)
+    model->OnSkipSignInClicked();
+  [self.delegate viewShouldDismiss];
+}
+
+@end
+
+@implementation SignInPromoViewController (Testing)
+
+- (NSButton*)signInButton {
+  return _signInButton.get();
+}
+
+- (NSButton*)noButton {
+  return _noButton.get();
+}
+
+@end