Record the return value of NativeLibraryPreloader.loadLibrary in UMA

base/android/library_loader/library_loader_hooks.h

Index: base/android/library_loader/library_loader_hooks.h
diff --git a/base/android/library_loader/library_loader_hooks.h b/base/android/library_loader/library_loader_hooks.h
index 1ed09bd54f00020c62e142480642281580f42a06..7449cb2e48b0e4cefc0da78e61d94e1cc7ba6123 100644
--- a/base/android/library_loader/library_loader_hooks.h
+++ b/base/android/library_loader/library_loader_hooks.h
@@ -28,8 +28,9 @@ enum LibraryProcessType {
 };
 
 // Record any pending renderer histogram value as a histogram.  Pending values
-// are set by RegisterChromiumAndroidLinkerRendererHistogram.
-BASE_EXPORT void RecordChromiumAndroidLinkerRendererHistogram();
+// are set by RegisterChromiumAndroidLinkerRendererHistogram and
+// RegisterLibraryPreloaderRendererHistogram.
+BASE_EXPORT void RecordLibraryLoaderRendererHistogram();
 
 // Registers the callbacks that allows the entry point of the library to be
 // exposed to the calling java code.  This handles only registering the