Convert BBH APIs to use SkRect.

src/core/SkBBoxHierarchyRecord.cpp

Index: src/core/SkBBoxHierarchyRecord.cpp
diff --git a/src/core/SkBBoxHierarchyRecord.cpp b/src/core/SkBBoxHierarchyRecord.cpp
index 8cdd1d96189ab4909cd495807b8ab2f2817a6da2..f4e79fa8288e5b0c0c69dd14cbb17410f7ef85db 100644
--- a/src/core/SkBBoxHierarchyRecord.cpp
+++ b/src/core/SkBBoxHierarchyRecord.cpp
@@ -20,10 +20,8 @@ SkBBoxHierarchyRecord::SkBBoxHierarchyRecord(const SkISize& size,
 }
 
 void SkBBoxHierarchyRecord::handleBBox(const SkRect& bounds) {
-    SkIRect r;
-    bounds.roundOut(&r);
     SkPictureStateTree::Draw* draw = fStateTree->appendDraw(this->writeStream().bytesWritten());
-    fBoundingHierarchy->insert(draw, r, true);
+    fBoundingHierarchy->insert(draw, bounds, true);
 }
 
 void SkBBoxHierarchyRecord::willSave() {