Avoid checking to see if a bool is less than zero.
Create a symbolic name for -1 when it means "don't know, probe at runtime".



git-svn-id: http://skia.googlecode.com/svn/trunk@1606 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/mac/GrGLDefaultInterface_mac.cpp b/gpu/src/mac/GrGLDefaultInterface_mac.cpp
index a49f238..cfa528a 100644
--- a/gpu/src/mac/GrGLDefaultInterface_mac.cpp
+++ b/gpu/src/mac/GrGLDefaultInterface_mac.cpp
@@ -23,7 +23,7 @@
     static GrGLInterface gDefaultInterface;
     static bool gDefaultInterfaceInit;
     if (!gDefaultInterfaceInit) {
-        gDefaultInterface.fNPOTRenderTargetSupport = 1;
+        gDefaultInterface.fNPOTRenderTargetSupport = true;
         gDefaultInterface.fMinRenderTargetHeight = 1;
         gDefaultInterface.fMinRenderTargetWidth = 1;