Move the Pepper implementation from webkit/glue/plugins/pepper_* to...

webkit/plugins/ppapi/ppb_pdf.h

Index: webkit/plugins/ppapi/ppb_pdf.h
===================================================================
--- webkit/plugins/ppapi/ppb_pdf.h	(revision 0)
+++ webkit/plugins/ppapi/ppb_pdf.h	(working copy)
@@ -11,7 +11,7 @@
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_var.h"
 
-#define PPB_PRIVATE_INTERFACE "PPB_Private;1"
+#define PPB_PDF_INTERFACE "PPB_PDF;1"
 
 // From the public PPB_Font_Dev file.
 struct PP_FontDescription_Dev;
@@ -81,7 +81,7 @@
   int length;
 };
 
-struct PPB_Private {
+struct PPB_PDF {
   // Returns a localized string.
   PP_Var (*GetLocalizedString)(PP_Module module, PP_ResourceString string_id);
 
@@ -115,9 +115,9 @@
      PP_PrivateFindResult** results,
      int* count);
 
-  // Since WebFrame doesn't know about Pepper requests, it'll think the page has
+  // Since WebFrame doesn't know about PPAPI requests, it'll think the page has
   // finished loading even if there are outstanding requests by the plugin.
-  // Take this out once WebFrame knows about requests by pepper plugins.
+  // Take this out once WebFrame knows about requests by PPAPI plugins.
   void (*DidStartLoading)(PP_Instance instance);
   void (*DidStopLoading)(PP_Instance instance);