Break large blobs into multiple ipcs during creation.

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
===================================================================
--- content/renderer/renderer_webkitplatformsupport_impl.cc	(revision 105887)
+++ content/renderer/renderer_webkitplatformsupport_impl.cc	(working copy)
@@ -604,9 +604,9 @@
 //------------------------------------------------------------------------------
 
 WebBlobRegistry* RendererWebKitPlatformSupportImpl::blobRegistry() {
-  // RenderThreadImpl::current can be NULL when running some tests.
-  if (!blob_registry_.get() && RenderThreadImpl::current()) {
-    blob_registry_.reset(new WebBlobRegistryImpl(RenderThreadImpl::Get()));
+  // ChildThread::current can be NULL when running some tests.
+  if (!blob_registry_.get() && ChildThread::current()) {
+    blob_registry_.reset(new WebBlobRegistryImpl(ChildThread::current()));
   }
   return blob_registry_.get();
 }