[PPAPI] Fix a bunch of spelling mistakes

ppapi/c/trusted/ppb_browser_font_trusted.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.
  */
 
 /* From trusted/ppb_browser_font_trusted.idl,
- *   modified Wed Jun 27 14:43:20 2012.
+ *   modified Thu Mar 28 10:14:27 2013.
  */
 
 #ifndef PPAPI_C_TRUSTED_PPB_BROWSER_FONT_TRUSTED_H_
 #define PPAPI_C_TRUSTED_PPB_BROWSER_FONT_TRUSTED_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_point.h"
 #include "ppapi/c/pp_rect.h"
@@ skipping 196 matching lines @@
    * Draws the text to the image buffer.
    *
    * The given point represents the baseline of the left edge of the font,
    * regardless of whether it is left-to-right or right-to-left (in the case of
    * RTL text, this will actually represent the logical end of the text).
    *
    * The clip is optional and may be NULL. In this case, the text will be
    * clipped to the image.
    *
    * The image_data_is_opaque flag indicates whether subpixel antialiasing can
-   * be performend, if it is supported. When the image below the text is
+   * be performed, if it is supported. When the image below the text is
    * opaque, subpixel antialiasing is supported and you should set this to
    * PP_TRUE to pick up the user's default preferences. If your plugin is
    * partially transparent, then subpixel antialiasing is not possible and
    * grayscale antialiasing will be used instead (assuming the user has
    * antialiasing enabled at all).
    */
   PP_Bool (*DrawTextAt)(PP_Resource font,
                         PP_Resource image_data,
                         const struct PP_BrowserFont_Trusted_TextRun* text,
                         const struct PP_Point* position,
@@ skipping 38 matching lines @@
       uint32_t char_offset);
 };
 
 typedef struct PPB_BrowserFont_Trusted_1_0 PPB_BrowserFont_Trusted;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_TRUSTED_PPB_BROWSER_FONT_TRUSTED_H_ */