Fix nits

Review URL: http://codereview.appspot.com/5155043/




git-svn-id: http://skia.googlecode.com/svn/trunk@2393 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrGLProgram.h b/gpu/src/GrGLProgram.h
index ced3e61..a79f877 100644
--- a/gpu/src/GrGLProgram.h
+++ b/gpu/src/GrGLProgram.h
@@ -125,7 +125,7 @@
             uint8_t fKernelWidth;
 
             inline bool isEnabled() const {
-                return 0 != (fOptFlags & kIsEnabled_OptFlagBit);
+                return SkToBool(fOptFlags & kIsEnabled_OptFlagBit);
             }
             inline void setEnabled(bool newValue) {
                 if (newValue) {