Modify rappor parameters.

components/rappor/rappor_parameters.cc

Index: components/rappor/rappor_parameters.cc
diff --git a/components/rappor/rappor_parameters.cc b/components/rappor/rappor_parameters.cc
index ede7636661e873e2ada2a3f621e5615b88a7b8c5..ae5b7ba5311749e470641ff4c40cb800f5450178 100644
--- a/components/rappor/rappor_parameters.cc
+++ b/components/rappor/rappor_parameters.cc
@@ -4,12 +4,14 @@
 
 #include "components/rappor/rappor_parameters.h"
 
+#include "base/compiler_specific.h"
 #include "base/strings/stringprintf.h"
 
 namespace rappor {
 
 std::string RapporParameters::ToString() const {
-  return base::StringPrintf("{ %d, %d, %d, %d, %d, %d }",
+  return base::StringPrintf("{ %d, %d, %d, %d, %d, %d, %d }",
+      num_cohorts,
       bloom_filter_size_bytes,
       bloom_filter_hash_function_count,
       fake_prob,
@@ -18,4 +20,6 @@ std::string RapporParameters::ToString() const {
       zero_coin_prob);
 }
 
+const int RapporParameters::kMaxCohorts = 512;
+
 }  // namespace rappor