deps: update v8 to 4.4.63.9

Upgrade the bundled V8 and update code in src/ and lib/ to the new API.

Notable backwards incompatible changes are the removal of the smalloc
module and dropped support for CESU-8 decoding.  CESU-8 support can be
brought back if necessary by doing UTF-8 decoding ourselves.

This commit includes https://codereview.chromium.org/1192973004 to fix
a build error on python 2.6 systems.  The original commit log follows:

    Use optparse in js2c.py for python compatibility

    Without this change, V8 won't build on RHEL/CentOS 6 because the
    distro python is too old to know about the argparse module.

PR-URL: https://github.com/nodejs/io.js/pull/2022
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

2 files changed, 39 insertions, 15 deletions

diff --git a/deps/v8/samples/process.cc b/deps/v8/samples/process.cc
index f44797066b..8d1cebeab5 100644
--- a/deps/v8/samples/process.cc
+++ b/deps/v8/samples/process.cc
@@ -29,12 +29,26 @@
 
 #include <include/libplatform/libplatform.h>
 
+#include <stdlib.h>
+#include <string.h>
+
 #include <map>
 #include <string>
 
 using namespace std;
 using namespace v8;
 
+class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
+ public:
+  virtual void* Allocate(size_t length) {
+    void* data = AllocateUninitialized(length);
+    return data == NULL ? data : memset(data, 0, length);
+  }
+  virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
+  virtual void Free(void* data, size_t) { free(data); }
+};
+
+
 // These interfaces represent an existing request processing interface.
 // The idea is to imagine a real application that uses these interfaces
 // and then add scripting capabilities that allow you to interact with
@@ -595,18 +609,21 @@ Handle<String> ReadFile(Isolate* isolate, const string& name) {
   if (file == NULL) return Handle<String>();
 
   fseek(file, 0, SEEK_END);
-  int size = ftell(file);
+  size_t size = ftell(file);
   rewind(file);
 
   char* chars = new char[size + 1];
   chars[size] = '\0';
-  for (int i = 0; i < size;) {
-    int read = static_cast<int>(fread(&chars[i], 1, size - i, file));
-    i += read;
+  for (size_t i = 0; i < size;) {
+    i += fread(&chars[i], 1, size - i, file);
+    if (ferror(file)) {
+      fclose(file);
+      return Handle<String>();
+    }
   }
   fclose(file);
-  Handle<String> result =
-      String::NewFromUtf8(isolate, chars, String::kNormalString, size);
+  Handle<String> result = String::NewFromUtf8(
+      isolate, chars, String::kNormalString, static_cast<int>(size));
   delete[] chars;
   return result;
 }
@@ -653,7 +670,10 @@ int main(int argc, char* argv[]) {
     fprintf(stderr, "No script was specified.\n");
     return 1;
   }
-  Isolate* isolate = Isolate::New();
+  ArrayBufferAllocator array_buffer_allocator;
+  Isolate::CreateParams create_params;
+  create_params.array_buffer_allocator = &array_buffer_allocator;
+  Isolate* isolate = Isolate::New(create_params);
   Isolate::Scope isolate_scope(isolate);
   HandleScope scope(isolate);
   Handle<String> source = ReadFile(isolate, file);
diff --git a/deps/v8/samples/shell.cc b/deps/v8/samples/shell.cc
index 0ed742d3e3..48c042c795 100644
--- a/deps/v8/samples/shell.cc
+++ b/deps/v8/samples/shell.cc
@@ -82,8 +82,9 @@ int main(int argc, char* argv[]) {
   v8::V8::Initialize();
   v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
   ShellArrayBufferAllocator array_buffer_allocator;
-  v8::V8::SetArrayBufferAllocator(&array_buffer_allocator);
-  v8::Isolate* isolate = v8::Isolate::New();
+  v8::Isolate::CreateParams create_params;
+  create_params.array_buffer_allocator = &array_buffer_allocator;
+  v8::Isolate* isolate = v8::Isolate::New(create_params);
   run_shell = (argc == 1);
   int result;
   {
@@ -238,18 +239,21 @@ v8::Handle<v8::String> ReadFile(v8::Isolate* isolate, const char* name) {
   if (file == NULL) return v8::Handle<v8::String>();
 
   fseek(file, 0, SEEK_END);
-  int size = ftell(file);
+  size_t size = ftell(file);
   rewind(file);
 
   char* chars = new char[size + 1];
   chars[size] = '\0';
-  for (int i = 0; i < size;) {
-    int read = static_cast<int>(fread(&chars[i], 1, size - i, file));
-    i += read;
+  for (size_t i = 0; i < size;) {
+    i += fread(&chars[i], 1, size - i, file);
+    if (ferror(file)) {
+      fclose(file);
+      return v8::Handle<v8::String>();
+    }
   }
   fclose(file);
-  v8::Handle<v8::String> result =
-      v8::String::NewFromUtf8(isolate, chars, v8::String::kNormalString, size);
+  v8::Handle<v8::String> result = v8::String::NewFromUtf8(
+      isolate, chars, v8::String::kNormalString, static_cast<int>(size));
   delete[] chars;
   return result;
 }