Revert of Remove SK_SUPPORT_LEGACY_DEEPFLATTENING.

src/effects/SkPictureImageFilter.cpp

Index: src/effects/SkPictureImageFilter.cpp
diff --git a/src/effects/SkPictureImageFilter.cpp b/src/effects/SkPictureImageFilter.cpp
index 5399ea7476c2b2e269d03b4047e571adf4cbbd19..da5597d69905385bb4fc610cd22aa60735b72724 100644
--- a/src/effects/SkPictureImageFilter.cpp
+++ b/src/effects/SkPictureImageFilter.cpp
@@ -29,6 +29,21 @@
 SkPictureImageFilter::~SkPictureImageFilter() {
     SkSafeUnref(fPicture);
 }
+
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkPictureImageFilter::SkPictureImageFilter(SkReadBuffer& buffer)
+  : INHERITED(0, buffer),
+    fPicture(NULL) {
+    if (!buffer.isCrossProcess()) {
+        if (buffer.readBool()) {
+            fPicture = SkPicture::CreateFromBuffer(buffer);
+        }
+    } else {
+        buffer.validate(!buffer.readBool());
+    }
+    buffer.readRect(&fCropRect);
+}
+#endif
 
 SkFlattenable* SkPictureImageFilter::CreateProc(SkReadBuffer& buffer) {
     SkAutoTUnref<SkPicture> picture;