[Sync] Componentize synced_tab_delegate

chrome/browser/ui/sync/browser_synced_window_delegates_getter.cc

 // 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.
 
 #include "chrome/browser/ui/sync/browser_synced_window_delegates_getter.h"
 
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/sync/browser_synced_window_delegate.h"
 #include "components/sync_driver/glue/synced_window_delegate.h"
 
 namespace browser_sync {
 
-BrowserSyncedWindowDelegatesGetter::BrowserSyncedWindowDelegatesGetter() {}
+BrowserSyncedWindowDelegatesGetter::BrowserSyncedWindowDelegatesGetter(
+    Profile* profile)
+    : profile_(profile) {}
 BrowserSyncedWindowDelegatesGetter::~BrowserSyncedWindowDelegatesGetter() {}
 
 std::set<const SyncedWindowDelegate*>
 BrowserSyncedWindowDelegatesGetter::GetSyncedWindowDelegates() {
   std::set<const SyncedWindowDelegate*> synced_window_delegates;
   // Add all the browser windows.
-  for (chrome::BrowserIterator it; !it.done(); it.Next())
+  for (chrome::BrowserIterator it; !it.done(); it.Next()) {
+    if (it->profile() != profile_)
+      continue;
     synced_window_delegates.insert(it->synced_window_delegate());
+  }
   return synced_window_delegates;
 }
 
 const SyncedWindowDelegate* BrowserSyncedWindowDelegatesGetter::FindById(
     SessionID::id_type id) {
   Browser* browser = chrome::FindBrowserWithID(id);
   return (browser != nullptr) ? browser->synced_window_delegate() : nullptr;
 }
 
 }  // namespace browser_sync