[NaCl SDK] A bunch of spelling fixes.

native_client_sdk/src/libraries/ppapi_main/ppapi_event.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #ifndef PPAPI_MAIN_PPAPI_EVENT_H_
 #define PPAPI_MAIN_PPAPI_EVENT_H_
 
 #include "ppapi/c/pp_input_event.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_touch_point.h"
 #include "ppapi/c/ppb_input_event.h"
 
 #include "utils/macros.h"
 
 EXTERN_C_BEGIN
 
 /*
  * Event Structures
  *
- * The following event structures are based on the equivilent structs
+ * The following event structures are based on the equivalent structs
  * defined in ppapi/c/ppb_input_event.h.
  *
  */
 
 // Generic Event
 typedef struct {
   PP_InputEvent_Type event_type;
   PP_TimeTicks time_ticks;
   uint32_t modifiers;
 } PPAPIEvent;
@@ skipping 39 matching lines @@
 #define MAX_TOUCH_POINTS 4
 typedef struct {
   PPAPIEvent event;
 
   uint32_t point_count;
   struct PP_TouchPoint points[MAX_TOUCH_POINTS];
 } PPAPITouchEvent;
 
 EXTERN_C_END
 
-#endif  // PPAPI_MAIN_PPAPI_EVENT_H_
+#endif  // PPAPI_MAIN_PPAPI_EVENT_H_