cc: Rename cc classes and members to match filenames

cc/math_util.h

Index: cc/math_util.h
diff --git a/cc/math_util.h b/cc/math_util.h
index ed3848e6f4b7fbdfe8b6b5264d59340b45438231..d3d8b4762e6288dc5c87a0a71bb8f596ebc9d9bb 100644
--- a/cc/math_util.h
+++ b/cc/math_util.h
@@ -37,7 +37,7 @@ struct HomogeneousCoordinate {
         if (w == 1)
             return FloatPoint(x, y);
 
-        // For now, because this code is used privately only by CCMathUtil, it should never be called when w == 0, and we do not yet need to handle that case.
+        // For now, because this code is used privately only by MathUtil, it should never be called when w == 0, and we do not yet need to handle that case.
         ASSERT(w);
         double invW = 1.0 / w;
         return FloatPoint(x * invW, y * invW);
@@ -48,7 +48,7 @@ struct HomogeneousCoordinate {
         if (w == 1)
             return FloatPoint3D(x, y, z);
 
-        // For now, because this code is used privately only by CCMathUtil, it should never be called when w == 0, and we do not yet need to handle that case.
+        // For now, because this code is used privately only by MathUtil, it should never be called when w == 0, and we do not yet need to handle that case.
         ASSERT(w);
         double invW = 1.0 / w;
         return FloatPoint3D(x * invW, y * invW, z * invW);
@@ -60,7 +60,7 @@ struct HomogeneousCoordinate {
     double w;
 };
 
-class CCMathUtil {
+class MathUtil {
 public:
 
     // Background: WebTransformationMatrix code in WebCore does not do the right thing in