Refactor FileVersionInfo into an interface with platform implementations.

chrome/renderer/renderer_glue.cc

Index: chrome/renderer/renderer_glue.cc
diff --git a/chrome/renderer/renderer_glue.cc b/chrome/renderer/renderer_glue.cc
index bf879be1840b73b453b143135898b893991d90e8..c2b4d0da53e569426b52ff961b0765a1521b3350 100644
--- a/chrome/renderer/renderer_glue.cc
+++ b/chrome/renderer/renderer_glue.cc
@@ -15,7 +15,10 @@
 #include "app/clipboard/clipboard.h"
 #include "app/clipboard/scoped_clipboard_writer.h"
 #include "app/resource_bundle.h"
+#include "base/file_version_info.h"
+#include "base/ref_counted.h"
 #include "base/string_util.h"
+#include "chrome/app/chrome_version_info.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/socket_stream_dispatcher.h"
@@ -265,4 +268,13 @@ void SetCacheMode(bool enabled) {
   RenderThread::current()->SetCacheMode(enabled);
 }
 
+std::string GetProductVersion() {
+  scoped_ptr<FileVersionInfo> version_info(
+      chrome_app::GetChromeVersionInfo());
+  std::string product("Chrome/");
+  product += version_info.get() ? WideToASCII(version_info->product_version())
+                                : "0.0.0.0";
+  return product;
+}
+
 }  // namespace webkit_glue