Bump min picture version.

src/core/SkImageFilter.cpp

Index: src/core/SkImageFilter.cpp
diff --git a/src/core/SkImageFilter.cpp b/src/core/SkImageFilter.cpp
index 79f04b88ec83890a8848d247200b64bd60850296..297565cd7ef12fefd0ee2547ebe71e95e31eca00 100644
--- a/src/core/SkImageFilter.cpp
+++ b/src/core/SkImageFilter.cpp
@@ -100,11 +100,7 @@ bool SkImageFilter::Common::unflatten(SkReadBuffer& buffer, int expectedCount) {
 
     uint32_t flags = buffer.readUInt();
     fCropRect = CropRect(rect, flags);
-    if (buffer.isVersionLT(SkReadBuffer::kImageFilterUniqueID_Version)) {
-        fUniqueID = next_image_filter_unique_id();
-    } else {
-        fUniqueID = buffer.readUInt();
-    }
+    fUniqueID = buffer.readUInt();
     return buffer.isValid();
 }