clean up Skia include_dirs

Skia's recently cleaned itself up so that it can build
with many fewer include_dirs / -Ifoo directives.  This
should let us tidy up skia/BUILD.gn in turn.

Since we had all those include_dirs available, a bunch
of odd Skia includes have slipped through the cracks.
I think this CL cleans them all up so that they're all
relative from chromium/src.

Also, git clang-format... some formatting changes from
that beyond just resorting.

Change-Id: I61fcba9e28a34eb394ec69795887d46728ebc788
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1583060
Commit-Queue: Kinuko Yasuda <[email protected]>
Auto-Submit: Mike Klein <[email protected]>
Reviewed-by: Dominic Mazzoni <[email protected]>
Reviewed-by: Kinuko Yasuda <[email protected]>
Reviewed-by: Florin Malita <[email protected]>
Reviewed-by: vmpstr <[email protected]>
Reviewed-by: Philip Rogers <[email protected]>
Cr-Commit-Position: refs/heads/master@{#654369}
diff --git a/skia/ext/event_tracer_impl.h b/skia/ext/event_tracer_impl.h
index 31acd9b6..0db6209 100644
--- a/skia/ext/event_tracer_impl.h
+++ b/skia/ext/event_tracer_impl.h
@@ -5,7 +5,7 @@
 #ifndef SKIA_EXT_TRACE_EVENT_H_
 #define SKIA_EXT_TRACE_EVENT_H_
 
-#include "SkPreConfig.h"
+#include "include/core/SkTypes.h"
 
 SK_API void InitSkiaEventTracer();