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 94%
rename from chrome/common/external_ipc_dumper.cc
rename to content/public/common/external_ipc_dumper.cc
index 4e0d671be7260ed75483b0b4f9aafe58981f2a66..ff5ae934c987668047ea110d0755f8fa68fbd889 100644
--- a/chrome/common/external_ipc_dumper.cc
+++ b/content/public/common/external_ipc_dumper.cc
@@ -7,7 +7,9 @@
 #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"
+
+namespace {
 
 typedef IPC::ChannelProxy::OutgoingMessageFilter* (*GetFilterFunction)();
 typedef void (*SetDumpDirectoryFunction)(const base::FilePath&);
@@ -21,6 +23,10 @@ const char kSetDumpDirectoryEntryName[] = "SetDumpDirectory";
 #define IPC_MESSAGE_DUMP_MODULE FILE_PATH_LITERAL("libipc_message_dump.so")
 #endif
 
+}  // namespace
+
+namespace content {
+
 IPC::ChannelProxy::OutgoingMessageFilter* LoadExternalIPCDumper(
     const base::FilePath& dump_directory) {
   base::FilePath module_path;
@@ -59,3 +65,5 @@ IPC::ChannelProxy::OutgoingMessageFilter* LoadExternalIPCDumper(
 
   return filter_entry_point();
 }
+
+}  // namespace content