Update from https://crrev.com/311076

sky/engine/platform/BUILD.gn

Index: sky/engine/platform/BUILD.gn
diff --git a/sky/engine/platform/BUILD.gn b/sky/engine/platform/BUILD.gn
index 6e031494284567ec53a8296e87028c7144535cb1..93537b41be54b422bb633fa7928fd50c926933bb 100644
--- a/sky/engine/platform/BUILD.gn
+++ b/sky/engine/platform/BUILD.gn
@@ -353,8 +353,6 @@ source_set("platform") {
     "graphics/GraphicsContext.cpp",
     "graphics/GraphicsContext.h",
     "graphics/GraphicsContextAnnotation.h",
-    "graphics/GraphicsContextRecorder.cpp",
-    "graphics/GraphicsContextRecorder.h",
     "graphics/GraphicsContextState.cpp",
     "graphics/GraphicsContextState.h",
     "graphics/GraphicsContextStateSaver.h",
@@ -381,8 +379,6 @@ source_set("platform") {
     "graphics/ImageSource.cpp",
     "graphics/ImageSource.h",
     "graphics/InterceptingCanvas.h",
-    "graphics/LoggingCanvas.cpp",
-    "graphics/LoggingCanvas.h",
     "graphics/OpaqueRectTrackingContentLayerDelegate.cpp",
     "graphics/OpaqueRectTrackingContentLayerDelegate.h",
     "graphics/Path.cpp",
@@ -391,12 +387,8 @@ source_set("platform") {
     "graphics/PathTraversalState.h",
     "graphics/Pattern.cpp",
     "graphics/Pattern.h",
-    "graphics/ProfilingCanvas.cpp",
-    "graphics/ProfilingCanvas.h",
     "graphics/RegionTracker.cpp",
     "graphics/RegionTracker.h",
-    "graphics/ReplayingCanvas.cpp",
-    "graphics/ReplayingCanvas.h",
     "graphics/skia/GaneshUtils.cpp",
     "graphics/skia/GaneshUtils.h",
     "graphics/skia/NativeImageSkia.cpp",