Bump min picture version.

Chrome Stable is M39, which produces picture format v35:
    https://chromium.googlesource.com/skia/+/chrome/m39/include/core/SkPicture.h

We don't need any code to deal with pictures older than v35.

(When M40 goes stable, we can step up to v37, the current latest version.)

BUG=skia:

Review URL: https://codereview.chromium.org/770703002

1 files changed, 1 insertions, 5 deletions

diff --git a/src/core/SkImageFilter.cpp b/src/core/SkImageFilter.cpp
index 79f04b88ec..297565cd7e 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();
 }