Limit the number of items generated in maps during IPC fuzzing.

tools/ipc_fuzzer/mutate/generate.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdlib.h>
 
 #include <algorithm>
 #include <iostream>
 #include <ostream>
 #include <set>
@@ skipping 392 matching lines @@
     --g_depth;
     return true;
   }
 };
 
 
 template <class A, class B>
 struct GenerateTraits<std::map<A, B> > {
   static bool Generate(std::map<A, B>* p, Generator* generator) {
     static int g_depth = 0;
-    size_t count = ++g_depth > 3 ? 0 : RandInRange(20);
+    size_t count = ++g_depth > 3 ? 0 : RandInRange(10);
     std::pair<A, B> place_holder;
     for (size_t i = 0; i < count; ++i) {
       if (!GenerateParam(&place_holder, generator)) {
         --g_depth;
         return false;
       }
       p->insert(place_holder);
     }
     --g_depth;
     return true;
@@ skipping 990 matching lines @@
     return EXIT_FAILURE;
 
   return EXIT_SUCCESS;
 }
 
 }  // namespace ipc_fuzzer
 
 int main(int argc, char** argv) {
   return ipc_fuzzer::GenerateMain(argc, argv);
 }