[PPAPI] Fix a bunch of spelling mistakes

ppapi/cpp/mouse_cursor.h

 // Copyright (c) 2012 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_CPP_MOUSE_CURSOR_H_
 #define PPAPI_CPP_MOUSE_CURSOR_H_
 
 #include "ppapi/c/ppb_mouse_cursor.h"
 #include "ppapi/cpp/image_data.h"
 #include "ppapi/cpp/instance_handle.h"
 #include "ppapi/cpp/point.h"
 
 namespace pp {
 
 class MouseCursor {
  public:
   /// Sets the given mouse cursor. The mouse cursor will be in effect whenever
   /// the mouse is over the given instance until it is set again by another
   /// call. Note that you can hide the mouse cursor by setting it to the
   /// <code>PP_MOUSECURSOR_TYPE_NONE</code> type.
   ///
   /// This function allows setting both system defined mouse cursors and
   /// custom cursors. To set a system-defined cursor, pass the type you want
   /// and set the custom image to a default-constructor ImageData object.
   /// To set a custom cursor, set the type to
   /// <code>PP_MOUSECURSOR_TYPE_CUSTOM</code> and specify your image and hot
   /// spot.
   ///
-  /// @param[in] instance A handle indentifying the instance that the mouse
+  /// @param[in] instance A handle identifying the instance that the mouse
   /// cursor will affect.
   ///
   /// @param[in] type A <code>PP_MouseCursor_Type</code> identifying the type
   /// of mouse cursor to show. See <code>ppapi/c/ppb_mouse_cursor.h</code>.
   ///
   /// @param[in] image A <code>ImageData</code> object identifying the
   /// custom image to set when the type is
   /// <code>PP_MOUSECURSOR_TYPE_CUSTOM</code>. The image must be less than 32
   /// pixels in each direction and must be of the system's native image format.
   /// When you are specifying a predefined cursor, this parameter should be a
   /// default-constructed ImageData.
   ///
-  /// @param[in] hot_spot When setting a custom cursor, this idenfifies the
+  /// @param[in] hot_spot When setting a custom cursor, this identifies the
   /// pixel position within the given image of the "hot spot" of the cursor.
   /// When specifying a stock cursor, this parameter is ignored.
   ///
   /// @return true on success, or false if the instance or cursor type
   /// was invalid or if the image was too large.
   static bool SetCursor(const InstanceHandle& instance,
                         PP_MouseCursor_Type type,
                         const ImageData& image = ImageData(),
                         const Point& hot_spot = Point(0, 0));
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_MOUSE_CURSOR_H_