Add and run clang format script

Summary: This code used to be auto generated. Let's let clang-format clean up some stuff for us.

Reviewed By: lucasr

Differential Revision: D3662225

fbshipit-source-id: ddd4064cbf9be21ca6a97001ace1b56b4314c86f

CSSLayout/CSSLayout-internal.h

@@ -26,9 +26,7 @@ typedef struct CSSCachedMeasurement {
 
 // This value was chosen based on empiracle data. Even the most complicated
 // layouts should not require more than 16 entries to fit within the cache.
-enum {
-  CSS_MAX_CACHED_RESULT_COUNT = 16
-};
+enum { CSS_MAX_CACHED_RESULT_COUNT = 16 };
 
 typedef struct CSSLayout {
   float position[4];
@@ -89,9 +87,13 @@ typedef struct CSSNode {
   CSSNodeListRef children;
   bool isDirty;
 
-  struct CSSNode* nextChild;
+  struct CSSNode *nextChild;
 
-  CSSSize (*measure)(void *context, float width, CSSMeasureMode widthMode, float height, CSSMeasureMode heightMode);
+  CSSSize (*measure)(void *context,
+      float width,
+      CSSMeasureMode widthMode,
+      float height,
+      CSSMeasureMode heightMode);
   void (*print)(void *context);
   void *context;
 } CSSNode;