Upgrade to V8 3.4

Merge 3.4.14.35

Simple merge required updates to makefiles only.

Bug: 568872
Change-Id: I403a38452c547e06fcfa951c12eca12a1bc40978
diff --git a/samples/process.cc b/samples/process.cc
index 4a873b7..07c4805 100644
--- a/samples/process.cc
+++ b/samples/process.cc
@@ -535,7 +535,7 @@
                   string* file) {
   for (int i = 1; i < argc; i++) {
     string arg = argv[i];
-    int index = arg.find('=', 0);
+    size_t index = arg.find('=', 0);
     if (index == string::npos) {
       *file = arg;
     } else {