Disables software to accelerated canvas update on Linux AMD GPUs

third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h

Index: third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h
diff --git a/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h b/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h
index cbd4fe925ae5a5501e89c78ef446d2028e002832..d773626ae34c65d41256a883f3d72d4ea92120c4 100644
--- a/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h
+++ b/third_party/WebKit/Source/platform/graphics/gpu/SharedGpuContext.h
@@ -34,6 +34,9 @@ class PLATFORM_EXPORT SharedGpuContext {
   Gl();                    // May re-create context if context was lost
   static GrContext* Gr();  // May re-create context if context was lost
   static bool IsValid();   // May re-create context if context was lost
+  // May re-create context if context was lost
+  static bool AllowSoftwareToAcceleratedCanvasUpgrade();
+
   static bool IsValidWithoutRestoring();
   typedef std::function<std::unique_ptr<WebGraphicsContext3DProvider>()>
       ContextProviderFactory;