Fix errors caused by unsafe conversions to/from size_t

third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp

Index: third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp b/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp
index c206c8f5a038954e995063c4c7bb038154cf285c..774c4de1b00618e1224eb4232513eb4c1cf6d042 100644
--- a/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp
+++ b/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp
@@ -248,8 +248,7 @@ void WebEmbeddedWorkerImpl::loadShadowPage()
     // Construct substitute data source for the 'shadow page'. We only need it
     // to have same origin as the worker so the loading checks work correctly.
     CString content("");
-    int length = static_cast<int>(content.length());
-    RefPtr<SharedBuffer> buffer(SharedBuffer::create(content.data(), length));
+    RefPtr<SharedBuffer> buffer(SharedBuffer::create(content.data(), content.length()));
     m_loadingShadowPage = true;
     m_mainFrame->frame()->loader().load(FrameLoadRequest(0, ResourceRequest(m_workerStartData.scriptURL), SubstituteData(buffer, "text/html", "UTF-8", KURL())));
 }