Plugin Power Saver: Fix Dr. Memory leaks in browser tests.

ppapi/examples/gamepad/gamepad.cc

Index: ppapi/examples/gamepad/gamepad.cc
diff --git a/ppapi/examples/gamepad/gamepad.cc b/ppapi/examples/gamepad/gamepad.cc
index d2b08844ebed669de53dd6a9e5cdb794215c2ac0..bfac65a498d1438c334595ce62af80808d720ba5 100644
--- a/ppapi/examples/gamepad/gamepad.cc
+++ b/ppapi/examples/gamepad/gamepad.cc
@@ -69,6 +69,8 @@ class MyInstance : public pp::Instance {
   }
 
   void OnFlush(int32_t) {
+    // This plugin continuously paints because it continously samples the
+    // gamepad and paints its updated state.
     Paint();
   }
 
@@ -145,4 +147,3 @@ Module* CreateModule() {
 }
 
 }  // namespace pp
-