diff -up chromium-62.0.3202.62/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h.gcc7 chromium-62.0.3202.62/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h
--- chromium-62.0.3202.62/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h.gcc7	2017-10-18 09:20:04.072765163 -0400
+++ chromium-62.0.3202.62/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h	2017-10-18 09:21:40.156905187 -0400
@@ -9,6 +9,7 @@
 #include "platform/graphics/WebGraphicsContext3DProviderWrapper.h"
 #include "platform/wtf/ThreadSpecific.h"
 
+#include <functional>
 #include <memory>
 
 namespace blink {