Configure V8 ResourceConstraints based on a device capabilities.

Source/bindings/v8/V8Initializer.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 33 matching lines @@
 #include "core/dom/ExceptionCode.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/frame/ConsoleTypes.h"
 #include "core/page/ContentSecurityPolicy.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/Frame.h"
 #include "core/platform/MemoryUsageSupport.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 #include <v8-debug.h>
+#include <v8-defaults.h>
 
 namespace WebCore {
 
 static Frame* findFrame(v8::Local<v8::Object> host, v8::Local<v8::Value> data, v8::Isolate* isolate)
 {
     WrapperTypeInfo* type = WrapperTypeInfo::unwrap(data);
 
     if (V8Window::info.equals(type)) {
         v8::Handle<v8::Object> windowWrapper = host->FindInstanceInPrototypeChain(V8Window::GetTemplate(isolate, worldTypeInMainThread(isolate)));
         if (windowWrapper.IsEmpty())
@@ skipping 102 matching lines @@
     if (initialized)
         return;
     initialized = true;
 
     initializeV8Common();
 
     v8::V8::SetFatalErrorHandler(reportFatalErrorInMainThread);
     v8::V8::AddMessageListener(messageHandlerInMainThread);
     v8::V8::SetFailedAccessCheckCallbackFunction(failedAccessCheckCallbackInMainThread);
     v8::V8::SetAllowCodeGenerationFromStringsCallback(codeGenerationCheckCallbackInMainThread);
+    v8::SetDefaultResourceConstraintsForCurrentPlatform();
     ScriptProfiler::initialize();
     V8PerIsolateData::ensureInitialized(isolate);
 }
 
 static void reportFatalErrorInWorker(const char* location, const char* message)
 {
     // FIXME: We temporarily deal with V8 internal error situations such as out-of-memory by crashing the worker.
     CRASH();
 }
 
@@ skipping 23 matching lines @@
 static const int kWorkerMaxStackSize = 500 * 1024;
 
 void V8Initializer::initializeWorker(v8::Isolate* isolate)
 {
     initializeV8Common();
 
     v8::V8::AddMessageListener(messageHandlerInWorker);
     v8::V8::SetFatalErrorHandler(reportFatalErrorInWorker);
 
     v8::ResourceConstraints resourceConstraints;
+    v8::ConfigureResourceConstraintsForCurrentPlatform(&resourceConstraints);
     uint32_t here;
     resourceConstraints.set_stack_limit(&here - kWorkerMaxStackSize / sizeof(uint32_t*));
     v8::SetResourceConstraints(&resourceConstraints);
 
     V8PerIsolateData::ensureInitialized(isolate);
 }
 
 } // namespace WebCore