Update to Chromium version 87.0.4280.0 (#812852)

- Windows: VS2015 Update 2 is now the minimum version requirement for linking
  cef_sandbox from official build binary distributions.

libcef/browser/alloy/chrome_profile_alloy.h

@@ -50,6 +50,7 @@ class ChromeProfileAlloy : public Profile {
   ExitType GetLastSessionExitType() const override;
   base::Time GetCreationTime() const override;
   void SetCreationTimeForTesting(base::Time creation_time) override;
+  void RecordMainFrameNavigation() override;
 
  private:
   std::unique_ptr<variations::VariationsClient> variations_client_;