Move clip off of draw target

src/core/SkRect.cpp

Index: src/core/SkRect.cpp
diff --git a/src/core/SkRect.cpp b/src/core/SkRect.cpp
index afd8bd8f719cfbea8814984eaf9b9fe4f5fd4f2c..05064d80c397aca59f24669a8090a1eabfdc588c 100644
--- a/src/core/SkRect.cpp
+++ b/src/core/SkRect.cpp
@@ -6,9 +6,14 @@
  * found in the LICENSE file.
  */
 
-
 #include "SkRect.h"
 
+bool SkIRect::contains(const SkRect& r) const {
+    return  !r.isEmpty() && !this->isEmpty() &&     // check for empties
+            (SkScalar)fLeft <= r.fLeft && (SkScalar)fTop <= r.fTop &&
+            (SkScalar)fRight >= r.fRight && (SkScalar)fBottom >= r.fBottom;
+}
+
 void SkIRect::join(int32_t left, int32_t top, int32_t right, int32_t bottom) {
     // do nothing if the params are empty
     if (left >= right || top >= bottom) {