Move IPC fuzzer switches and helpers from chrome/common to content/common.

content/public/common/external_ipc_dumper.cc

Index: content/public/common/external_ipc_dumper.cc
diff --git a/chrome/common/external_ipc_dumper.cc b/content/public/common/external_ipc_dumper.cc
similarity index 97%
rename from chrome/common/external_ipc_dumper.cc
rename to content/public/common/external_ipc_dumper.cc
index 4e0d671be7260ed75483b0b4f9aafe58981f2a66..bc8bb1ce841500947984ccbc3edc7e5a509c1518 100644
--- a/chrome/common/external_ipc_dumper.cc
+++ b/content/public/common/external_ipc_dumper.cc
@@ -7,7 +7,7 @@
 #include "base/native_library.h"
 #include "base/path_service.h"
 #include "build/build_config.h"
-#include "chrome/common/external_ipc_dumper.h"
+#include "content/public/common/external_ipc_dumper.h"
 
 typedef IPC::ChannelProxy::OutgoingMessageFilter* (*GetFilterFunction)();
 typedef void (*SetDumpDirectoryFunction)(const base::FilePath&);