Show an info icon with a tooltip for PSL-matches in the account chooser on Mac.

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

 // Copyright 2015 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/account_chooser_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #import "chrome/browser/ui/cocoa/key_equivalent_constants.h"
 #import "chrome/browser/ui/cocoa/passwords/account_avatar_fetcher_manager.h"
 #import "chrome/browser/ui/cocoa/passwords/credential_item_button.h"
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
 #include "chrome/browser/ui/passwords/manage_passwords_view_utils.h"
 #include "chrome/browser/ui/passwords/password_dialog_controller.h"
 #include "chrome/browser/ui/passwords/password_dialog_prompts.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/theme_resources.h"
 #include "components/autofill/core/common/password_form.h"
 #include "components/password_manager/core/common/credential_manager_types.h"
 #include "skia/ext/skia_utils_mac.h"
 #include "ui/base/cocoa/controls/hyperlink_text_view.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/color_palette.h"
+#include "ui/gfx/image/image_skia_util_mac.h"
+#include "ui/gfx/paint_vector_icon.h"
+#include "ui/gfx/vector_icons_public.h"
 #include "ui/strings/grit/ui_strings.h"
 
 namespace {
 
 // Standard height of one credential item. It can be bigger though in case the
 // text needs more vertical space than the avatar.
 constexpr CGFloat kCredentialHeight =
     kAvatarImageSize + 2 * kVerticalAvatarMargin;
 
 // Maximum height of the credential list. The unit is one row height.
 constexpr CGFloat kMaxHeightAccounts = 3.5;
 
+NSImageView* IconForPSL(const NSRect& parentRect, const std::string& tooltip) {
+  NSImage* image = gfx::NSImageFromImageSkia(gfx::CreateVectorIcon(
+      gfx::VectorIconId::INFO_OUTLINE, gfx::kChromeIconGrey));
+  NSRect rect = NSMakeRect(
+      base::i18n::IsRTL() ? kFramePadding
+                          : NSMaxX(parentRect) - kInfoIconSize - kFramePadding,
+      NSMinY(parentRect) + (NSHeight(parentRect) - kInfoIconSize) / 2,
+      kInfoIconSize, kInfoIconSize);
+  base::scoped_nsobject<NSImageView> icon(
+      [[NSImageView alloc] initWithFrame:rect]);
+  [icon setImage:image];
+  [icon setToolTip:base::SysUTF8ToNSString(tooltip)];
+  return icon.autorelease();
+}
+
 }  // namespace
 
 @interface AccountChooserViewController () {
   NSButton* cancelButton_;  // Weak.
   NSButton* signInButton_;  // Weak.
-  NSTextView* titleView_;   //  Weak.
+  NSTextView* titleView_;   // Weak.
   base::scoped_nsobject<NSArray> credentialButtons_;
   base::scoped_nsobject<AccountAvatarFetcherManager> avatarManager_;
 }
 - (void)onCancelClicked:(id)sender;
 - (void)onCredentialClicked:(id)sender;
 - (void)onSignInClicked:(id)sender;
 - (void)loadCredentialItems;
 @end
 
 @implementation AccountChooserViewController
@@ skipping 80 matching lines @@
   [scrollView setBorderType:NSNoBorder];
   const CGFloat buttonWidth = [scrollView contentSize].width;
   CGFloat curY = 0;
   base::scoped_nsobject<NSView> documentView([[NSView alloc]
       initWithFrame:NSZeroRect]);
   for (CredentialItemButton* button in credentialButtons_.get()) {
     [documentView addSubview:button];
     CGFloat cellHeight = [[button cell] cellSize].height;
     [button setFrame:NSMakeRect(0, curY, buttonWidth,
                                 cellHeight + 2 * kVerticalAvatarMargin)];
+    if (button.passwordForm->is_public_suffix_match) {
+      NSImageView* icon = IconForPSL(
+          [button frame], button.passwordForm->origin.GetOrigin().spec());
+      [documentView addSubview:icon];
+    }
     curY = NSMaxY([button frame]);
   }
   [documentView setFrameSize:NSMakeSize(buttonWidth, curY)];
   [scrollView setDocumentView:documentView];
   [scrollView setFrameSize:NSMakeSize(
       kDesiredBubbleWidth,
       [scrollView hasVerticalScroller] ? kMaxHeightAccounts * kCredentialHeight
                                        : curY)];
   [view addSubview:scrollView];
   [documentView scrollRectToVisible:NSMakeRect(0, curY, buttonWidth, 0)];
@@ skipping 106 matching lines @@
 
 - (NSArray*)credentialButtons {
   return credentialButtons_;
 }
 
 - (NSTextView*)titleView {
   return titleView_;
 }
 
 @end