Pass bounds into draw calls in path renderers.

src/gpu/GrPathRenderer.cpp

Index: src/gpu/GrPathRenderer.cpp
diff --git a/src/gpu/GrPathRenderer.cpp b/src/gpu/GrPathRenderer.cpp
index e0d2682bcd379b33b5a31c721474279b8faf915b..e88db22b30d7958b15ae9d5fa21edad1bacb03cc 100644
--- a/src/gpu/GrPathRenderer.cpp
+++ b/src/gpu/GrPathRenderer.cpp
@@ -12,3 +12,15 @@ SK_DEFINE_INST_COUNT(GrPathRenderer)
 
 GrPathRenderer::GrPathRenderer() {
 }
+
+void GrPathRenderer::GetPathDevBounds(const SkPath& path,
+                                      int devW, int devH,
+                                      const SkMatrix& matrix,
+                                      SkRect* bounds) {
+    if (path.isInverseFillType()) {
+        *bounds = SkRect::MakeWH(SkIntToScalar(devW), SkIntToScalar(devH));
+        return;
+    }
+    *bounds = path.getBounds();
+    matrix.mapRect(bounds);
+}