Break large blobs into multiple ipcs during creation.

content/common/webblobregistry_impl.h

Index: content/common/webblobregistry_impl.h
===================================================================
--- content/common/webblobregistry_impl.h	(revision 105622)
+++ content/common/webblobregistry_impl.h	(working copy)
@@ -6,19 +6,23 @@
 #define CHROME_COMMON_WEBBLOBREGISTRY_IMPL_H_
 #pragma once
 
-#include "ipc/ipc_message.h"
+//#include "ipc/ipc_message.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBlobRegistry.h"
 
+class ChildThread;
+
+namespace base {
+class SharedMemory;
+}
+
 namespace WebKit {
 class WebBlobData;
-class WebBlobStorageData;
-class WebString;
 class WebURL;
 }
 
 class WebBlobRegistryImpl : public WebKit::WebBlobRegistry {
  public:
-  explicit WebBlobRegistryImpl(IPC::Message::Sender* sender);
+  explicit WebBlobRegistryImpl(ChildThread* child_thread);
   virtual ~WebBlobRegistryImpl();
 
   // See WebBlobRegistry.h for documentation on these functions.
@@ -29,7 +33,7 @@
   virtual void unregisterBlobURL(const WebKit::WebURL& url);
 
  private:
-  IPC::Message::Sender* sender_;
+  ChildThread* child_thread_;
 };
 
 #endif  // CHROME_COMMON_WEBBLOBREGISTRY_IMPL_H_