Extracting page shingle hashes for similarity detection.

chrome/common/safe_browsing/client_model.proto

Index: chrome/common/safe_browsing/client_model.proto
diff --git a/chrome/common/safe_browsing/client_model.proto b/chrome/common/safe_browsing/client_model.proto
index 6a1a912d5f56a13f9f6cf1e1c26c2dd3f45bf76d..8216682b2af41e2bec8c967750ed7cba539876ac 100644
--- a/chrome/common/safe_browsing/client_model.proto
+++ b/chrome/common/safe_browsing/client_model.proto
@@ -88,4 +88,10 @@ message ClientSideModel {
 
   // Murmur hash seed that was used to hash the page words.
   optional fixed32 murmur_hash_seed = 8;
+
+  // Maximum number of unique shingle hashes per page.
+  optional int32 max_shingles_per_page = 9 [default = 200];
+
+  // The number of words in a shingle.
+  optional int32 shingle_size = 10 [default = 4];
 }