Add Views implementation of ProfileSigninConfirmationDialog.

chrome/browser/ui/sync/profile_signin_confirmation_helper.cc

 // 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 "chrome/browser/ui/sync/profile_signin_confirmation_helper.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_service.h"
 #include "base/string16.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/common/cancelable_request.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/history/history_backend.h"
 #include "chrome/browser/history/history_db_task.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/history_types.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_set.h"
+#include "ui/gfx/color_utils.h"
+#include "ui/native_theme/native_theme.h"
 
 // TODO(dconnelly): change VLOG to DVLOG (crbug.com/240195)
 
 namespace {
 
 const int kHistoryEntriesBeforeNewProfilePrompt = 10;
 
 // Determines whether a profile has any typed URLs in its history.
 class HasTypedURLsTask : public history::HistoryDBTask {
  public:
@@ skipping 159 matching lines @@
     result_returned_ = true;
     request_consumer_.CancelAllRequests();
     return_result_.Run(result);
   }
 }
 
 }  // namespace
 
 namespace ui {
 
+SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha) {
+  static const SkColor kBackgroundColor =
+      ui::NativeTheme::instance()->GetSystemColor(
+          ui::NativeTheme::kColorId_DialogBackground);
+  unsigned char background_luminance =
+      color_utils::GetLuminanceForColor(kBackgroundColor);
+  const SkColor blend_color =
+      background_luminance < 128 ? SK_ColorWHITE : SK_ColorBLACK;
+  return color_utils::AlphaBlend(blend_color, kBackgroundColor, alpha);
+}
+
 bool HasBeenShutdown(Profile* profile) {
   bool has_been_shutdown = !profile->IsNewProfile();
   if (has_been_shutdown)
     VLOG(1) << "ProfileSigninConfirmationHelper: profile is not new";
   return has_been_shutdown;
 }
 
 void CheckShouldPromptForNewProfile(
     Profile* profile,
     const base::Callback<void(bool)>& return_result) {
   if (HasBeenShutdown(profile) ||
       HasBookmarks(profile) ||
       HasSyncedExtensions(profile)) {
     return_result.Run(true);
     return;
   }
   // Fire asynchronous queries for profile data.
   scoped_refptr<ProfileSigninConfirmationHelper> helper =
       new ProfileSigninConfirmationHelper(profile, return_result);
   const int requests = 2;
   helper->set_pending_requests(requests);
   helper->CheckHasHistory(kHistoryEntriesBeforeNewProfilePrompt);
   helper->CheckHasTypedURLs();
 }
 
 }  // namespace ui