[V8] Rename getWorld() to isolatedWorld(), and getWorldForEnteredContext() to isolatedWorldForEnteredContext()
https://bugs.webkit.org/show_bug.cgi?id=111212

Reviewed by Adam Barth.

The rename I did in r142424 was wrong. Given that getWorld() returns 0
for the main world, it should be named isolatedWorld(). Similarly,
given that getWorldForEnteredContext() returns 0 for the main world,
it should be named isolatedWorldForEnteredContext().

No tests. No change in behavior.

* bindings/v8/CustomElementHelpers.cpp:
(WebCore::CustomElementHelpers::isFeatureAllowed):
* bindings/v8/DOMDataStore.cpp:
(WebCore::DOMDataStore::current):
* bindings/v8/DOMWrapperWorld.cpp:
(WebCore::DOMWrapperWorld::makeContextWeak):
* bindings/v8/DOMWrapperWorld.h:
(WebCore::DOMWrapperWorld::isolatedWorld):
* bindings/v8/ScriptController.cpp:
(WebCore::ScriptController::shouldBypassMainWorldContentSecurityPolicy):
(WebCore::ScriptController::currentWorldContext):
* bindings/v8/V8Binding.h:
(WebCore::isolatedWorldForEnteredContext):
* bindings/v8/WorldContextHandle.cpp:
(WebCore::WorldContextHandle::WorldContextHandle):
* bindings/v8/custom/V8DocumentCustom.cpp:
(WebCore::wrap):
* bindings/v8/custom/V8HTMLDocumentCustom.cpp:
(WebCore::wrap):
* bindings/v8/custom/V8SVGDocumentCustom.cpp:
(WebCore::wrap):
* bindings/v8/custom/V8XMLHttpRequestCustom.cpp:
(WebCore::V8XMLHttpRequest::constructorCustom):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144587 268f45cc-cd09-0410-ab3c-d52691b4dbfc