Added link to ppb.h to point to list of valid interface names. Wrote/rewrote ...

ppapi/c/ppb.h

Index: ppapi/c/ppb.h
===================================================================
--- ppapi/c/ppb.h	(revision 76758)
+++ ppapi/c/ppb.h	(working copy)
@@ -22,7 +22,9 @@
  * to request a pointer to a specific browser interface. Browser interface
  * names are ASCII strings and are generally defined in the header file for the
  * interface, such as PP_AUDIO_INTERFACE found in ppb.audio.h or
- * PPB_GRAPHICS_2D_INTERFACE in ppb_graphics_2d.h.
+ * PPB_GRAPHICS_2D_INTERFACE in ppb_graphics_2d.h. Click
+ * <a class="el" href="globals_defs.html" title="macros">here</a>
+ * for a complete list of interface names.

[dmichael(do not use this one), 2011/03/04 16:42:49]

I think I'd prefer an absolute URL, so that somebody looking at the code can
find it.

[jond, 2011/03/04 17:16:33]

Done. The link won't work until we push the next load of docs to
code.google.com. 

On 2011/03/04 16:42:49, dmichael wrote:

[dmichael(do not use this one), 2011/03/04 19:45:01]

Can you make doxygen still recognize it if you break it in to multiple lines? 
We generally don't have >80 characters per line.

  *
  * This value will be NULL if the interface is not supported on the browser.
  */