Local NTP: Deploy strict-dynamic CSP

chrome/browser/search/local_ntp_source.h

 // 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.
 
 #ifndef CHROME_BROWSER_SEARCH_LOCAL_NTP_SOURCE_H_
 #define CHROME_BROWSER_SEARCH_LOCAL_NTP_SOURCE_H_
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "content/public/browser/url_data_source.h"
 
 class Profile;
 
 // Serves HTML and resources for the local new tab page i.e.
 // chrome-search://local-ntp/local-ntp.html
 class LocalNtpSource : public content::URLDataSource {
  public:
   explicit LocalNtpSource(Profile* profile);
 
  private:
+  class GoogleSearchProviderTracker;
+
   ~LocalNtpSource() override;
 
   // Overridden from content::URLDataSource:
   std::string GetSource() const override;
   void StartDataRequest(
       const std::string& path,
       const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
       const content::URLDataSource::GotDataCallback& callback) override;
   std::string GetMimeType(const std::string& path) const override;
   bool AllowCaching() const override;
   bool ShouldServiceRequest(const net::URLRequest* request) const override;
+  std::string GetContentSecurityPolicyScriptSrc() const override;
   std::string GetContentSecurityPolicyChildSrc() const override;
 
+  void DefaultSearchProviderIsGoogleChanged(bool is_google);
+
+  void SetDefaultSearchProviderIsGoogleOnIOThread(bool is_google);
+
   Profile* profile_;
 
+  std::unique_ptr<GoogleSearchProviderTracker> google_tracker_;
+  bool default_search_provider_is_google_;
+  // A copy of |default_search_provider_is_google_| for use on the IO thread.
+  bool default_search_provider_is_google_io_thread_;
+
+  base::WeakPtrFactory<LocalNtpSource> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(LocalNtpSource);
 };
 
 #endif  // CHROME_BROWSER_SEARCH_LOCAL_NTP_SOURCE_H_