Stack sampling profiler: handle unloaded and unloading modules

base/scoped_native_library.h

Index: base/scoped_native_library.h
diff --git a/base/scoped_native_library.h b/base/scoped_native_library.h
index c0e93f37212bc06b1f52321946e6a7a9a348ba66..bfe5566a2c97773ec8aa001b38ad08c2e9654c40 100644
--- a/base/scoped_native_library.h
+++ b/base/scoped_native_library.h
@@ -31,6 +31,8 @@ class BASE_EXPORT ScopedNativeLibrary {
   // Returns true if there's a valid library loaded.
   bool is_valid() const { return !!library_; }
 
+  NativeLibrary get() const { return library_; }
+
   void* GetFunctionPointer(const char* function_name) const;
 
   // Takes ownership of the given library handle. Any existing handle will