Move SkDrawLooper implementation to its own file.

src/core/SkPaint.cpp

Index: src/core/SkPaint.cpp
diff --git a/src/core/SkPaint.cpp b/src/core/SkPaint.cpp
index c7cbce18c77e48f3f864dd91446b8be82cfedd87..f67395970bc6615981db995a99c6e1adabc97eb9 100644
--- a/src/core/SkPaint.cpp
+++ b/src/core/SkPaint.cpp
@@ -2552,51 +2552,3 @@ bool SkPaint::nothingToDraw() const {
     }
     return false;
 }
-
-
-//////////// Move these to their own file soon.
-
-SK_DEFINE_INST_COUNT(SkDrawLooper)
-
-bool SkDrawLooper::canComputeFastBounds(const SkPaint& paint) {
-    SkCanvas canvas;
-
-    this->init(&canvas);
-    for (;;) {
-        SkPaint p(paint);
-        if (this->next(&canvas, &p)) {
-            p.setLooper(NULL);
-            if (!p.canComputeFastBounds()) {
-                return false;
-            }
-        } else {
-            break;
-        }
-    }
-    return true;
-}
-
-void SkDrawLooper::computeFastBounds(const SkPaint& paint, const SkRect& src,
-                                     SkRect* dst) {
-    SkCanvas canvas;
-
-    this->init(&canvas);
-    for (bool firstTime = true;; firstTime = false) {
-        SkPaint p(paint);
-        if (this->next(&canvas, &p)) {
-            SkRect r(src);
-
-            p.setLooper(NULL);
-            p.computeFastBounds(r, &r);
-            canvas.getTotalMatrix().mapRect(&r);
-
-            if (firstTime) {
-                *dst = r;
-            } else {
-                dst->join(r);
-            }
-        } else {
-            break;
-        }
-    }
-}