Make from-space initially uncommitted for another 1Mbyte

test/cctest/test-mark-compact.cc

Index: test/cctest/test-mark-compact.cc
===================================================================
--- test/cctest/test-mark-compact.cc	(revision 10413)
+++ test/cctest/test-mark-compact.cc	(working copy)
@@ -534,15 +534,15 @@
     intptr_t booted_memory = MemoryInUse();
     if (sizeof(initial_memory) == 8) {
       if (v8::internal::Snapshot::IsEnabled()) {
-        CHECK_LE(booted_memory - initial_memory, 4700 * 1024);  // 4640.
+        CHECK_LE(booted_memory - initial_memory, 3700 * 1024);  // 3640.
       } else {
-        CHECK_LE(booted_memory - initial_memory, 4300 * 1024);  // 4276.
+        CHECK_LE(booted_memory - initial_memory, 3300 * 1024);  // 3276.
       }
     } else {
       if (v8::internal::Snapshot::IsEnabled()) {
-        CHECK_LE(booted_memory - initial_memory, 3300 * 1024);  // 3276.
+        CHECK_LE(booted_memory - initial_memory, 2300 * 1024);  // 2276.
       } else {
-        CHECK_LE(booted_memory - initial_memory, 3500 * 1024);  // 3416
+        CHECK_LE(booted_memory - initial_memory, 2500 * 1024);  // 2416
       }
     }
   }