[NaCl SDK] A bunch of spelling fixes.

native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h

Index: native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h
diff --git a/native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h b/native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h
index 7b2a9c62d7c329cd39af0a9ca87ef63fec9064ea..d261a4a70bc75294112d0bc8c51fe60060051501 100644
--- a/native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h
+++ b/native_client_sdk/src/examples/fullscreen_tumbler/tumbler.h
@@ -51,7 +51,7 @@ class Tumbler : public pp::Instance {
   void InitializeMethods(ScriptingBridge* bridge);
 
   // Set the camera orientation to the quaternion in |args[0]|.  |args| must
-  // have length at least 1; the first element is expeted to be an Array
+  // have length at least 1; the first element is expected to be an Array
   // object containing 4 floating point number elements (the quaternion).
   // This method is bound to the JavaScript "setCameraOrientation" method and
   // is called like this: