Implement Blink-side changes to enable V8 code caching.

Source/web/WebSettingsImpl.cpp

Index: Source/web/WebSettingsImpl.cpp
diff --git a/Source/web/WebSettingsImpl.cpp b/Source/web/WebSettingsImpl.cpp
index 07803b4746f24e260fddb01a3f572a4368f8f76e..d3dd3ec9c8df8ef5121e0633568fdf5c3941a68f 100644
--- a/Source/web/WebSettingsImpl.cpp
+++ b/Source/web/WebSettingsImpl.cpp
@@ -695,4 +695,9 @@ void WebSettingsImpl::setMainFrameResizesAreOrientationChanges(bool enabled)
     m_mainFrameResizesAreOrientationChanges = enabled;
 }
 
+void WebSettingsImpl::setV8CacheOptions(const WebString& options)
+{
+    m_settings->setV8CacheOptions(options);
+}
+
 } // namespace blink