Switch blink to use a gin-managed isolate.

Source/web/WebKit.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 74 matching lines @@
 
 static WebThread::TaskObserver* s_endOfTaskRunner = 0;
 static WebThread::TaskObserver* s_pendingGCRunner = 0;
 static ThreadState::Interruptor* s_messageLoopInterruptor = 0;
 static ThreadState::Interruptor* s_isolateInterruptor = 0;
 
 // Make sure we are not re-initialized in the same address space.
 // Doing so may cause hard to reproduce crashes.
 static bool s_webKitInitialized = false;
 
-static bool generateEntropy(unsigned char* buffer, size_t length)
-{
-    if (Platform::current()) {
-        Platform::current()->cryptographicallyRandomValues(buffer, length);
-        return true;
-    }
-    return false;
-}
-
 void initialize(Platform* platform)
 {
     initializeWithoutV8(platform);
 
-    v8::V8::InitializePlatform(gin::V8Platform::Get());
-    v8::Isolate* isolate = v8::Isolate::New();
-    isolate->Enter();
-    V8Initializer::initializeMainThreadIfNeeded(isolate);
-    v8::V8::SetEntropySource(&generateEntropy);
-    v8::V8::SetArrayBufferAllocator(v8ArrayBufferAllocator());
-    v8::V8::Initialize();
-    V8PerIsolateData::ensureInitialized(isolate);
+    V8Initializer::initializeMainThreadIfNeeded();
 
-    s_isolateInterruptor = new V8IsolateInterruptor(v8::Isolate::GetCurrent());
+    s_isolateInterruptor = new V8IsolateInterruptor(V8PerIsolateData::mainThreadIsolate());
     ThreadState::current()->addInterruptor(s_isolateInterruptor);
 
     // currentThread will always be non-null in production, but can be null in Chromium unit tests.
     if (WebThread* currentThread = platform->currentThread()) {
         ASSERT(!s_endOfTaskRunner);
         s_endOfTaskRunner = new EndOfTaskRunner;
         currentThread->addTaskObserver(s_endOfTaskRunner);
     }
 }
 
@@ skipping 89 matching lines @@
         delete s_messageLoopInterruptor;
         s_messageLoopInterruptor = 0;
     }
 
     // Detach the main thread before starting the shutdown sequence
     // so that the main thread won't get involved in a GC during the shutdown.
     ThreadState::detachMainThread();
 
     v8::Isolate* isolate = V8PerIsolateData::mainThreadIsolate();
     V8PerIsolateData::dispose(isolate);
-    isolate->Exit();
-    isolate->Dispose();
 
     shutdownWithoutV8();
 }
 
 void shutdownWithoutV8()
 {
     ASSERT(!s_endOfTaskRunner);
     CoreInitializer::shutdown();
     Scheduler::shutdown();
     Heap::shutdown();
@@ skipping 30 matching lines @@
         channel->state = WTFLogChannelOn;
 #endif // !LOG_DISABLED
 }
 
 void resetPluginCache(bool reloadPages)
 {
     Page::refreshPlugins(reloadPages);
 }
 
 } // namespace blink