Clean up SkTypes.h.

samplecode/SampleEmptyPath.cpp

Index: samplecode/SampleEmptyPath.cpp
===================================================================
--- a/samplecode/SampleEmptyPath.cpp	(revision 11693)
+++ b/samplecode/SampleEmptyPath.cpp	(working copy)
@@ -10,6 +10,7 @@
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkRandom.h"
+#include "SkString.h"
 
 class EmptyPathView : public SampleView {
 public:
@@ -103,14 +104,14 @@
                 rectPaint.setAntiAlias(true);
                 canvas->drawRect(rect, rectPaint);
 
-                char label[1024];
-                sprintf(label, "%s, %s", gStyles[style].fName,
-                                         gFills[fill].fName);
+                SkString label;
+                label.appendf("%s, %s", gStyles[style].fName, gFills[fill].fName);
+
                 SkPaint labelPaint;
                 labelPaint.setColor(color);
                 labelPaint.setAntiAlias(true);
                 labelPaint.setLCDRenderText(true);
-                canvas->drawText(label, strlen(label),
+                canvas->drawText(label.c_str(), label.size(),
                                  0, rect.height() + 15 * SK_Scalar1,
                                  labelPaint);
             }