Use correct printf format macros for size_t printing

R=mlippautz@chromium.org
BUG=

Change-Id: I4b25bcc1accd652e28a1fe4fc9776265afa1b75b
Reviewed-on: https://chromium-review.googlesource.com/440944Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43084}

src/isolate.cc

@@ -2131,8 +2131,7 @@ class VerboseAccountingAllocator : public AccountingAllocator {
         "\"time\": %f, "
         "\"ptr\": \"%p\", "
         "\"name\": \"%s\","
-        "\"nesting\": %zu"
-        "}\n",
+        "\"nesting\": %" PRIuS "}\n",
         reinterpret_cast<void*>(heap_->isolate()), time,
         reinterpret_cast<const void*>(zone), zone->name(),
         nesting_deepth_.Value());
@@ -2149,9 +2148,9 @@ class VerboseAccountingAllocator : public AccountingAllocator {
         "\"time\": %f, "
         "\"ptr\": \"%p\", "
         "\"name\": \"%s\", "
-        "\"size\": %zu,"
-        "\"nesting\": %zu"
-        "}\n",
+        "\"size\": %" PRIuS
+        ","
+        "\"nesting\": %" PRIuS "}\n",
         reinterpret_cast<void*>(heap_->isolate()), time,
         reinterpret_cast<const void*>(zone), zone->name(),
         zone->allocation_size(), nesting_deepth_.Value());
@@ -2167,9 +2166,9 @@ class VerboseAccountingAllocator : public AccountingAllocator {
         "\"type\": \"zone\", "
         "\"isolate\": \"%p\", "
         "\"time\": %f, "
-        "\"allocated\": %zu,"
-        "\"pooled\": %zu"
-        "}\n",
+        "\"allocated\": %" PRIuS
+        ","
+        "\"pooled\": %" PRIuS "}\n",
         reinterpret_cast<void*>(heap_->isolate()), time, malloced, pooled);
   }