Report PPAPI plugin load error code to UMA.

chrome/browser/load_library_perf_test.cc

Index: chrome/browser/load_library_perf_test.cc
diff --git a/chrome/browser/load_library_perf_test.cc b/chrome/browser/load_library_perf_test.cc
index c35cd0bb86942fffd17b02d2aa49642ef708ec53..909fc0063eaa891d43affddf92f4d79db7653753 100644
--- a/chrome/browser/load_library_perf_test.cc
+++ b/chrome/browser/load_library_perf_test.cc
@@ -28,7 +28,7 @@ void MeasureSizeAndTimeToLoadNativeLibrary(const base::FilePath& library_name) {
                          "bytes",
                          true);
 
-  std::string error;
+  base::NativeLibraryLoadError error = 0;

[ddorwin, 2014/03/21 20:06:32]

This compiles on platforms other than Windows, but it hardly does what is
expected.

[xhwang, 2014/03/21 22:33:28]

Fixed.

   base::TimeTicks start = base::TimeTicks::HighResNow();
   base::NativeLibrary native_library =
       base::LoadNativeLibrary(library_path, &error);