Blink: Replace all "plug-in" with "plugin".

ManualTests/NPN_Invoke/main.c

 /*
  IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
  consideration of your agreement to the following terms, and your use, installation, 
  modification or redistribution of this Apple software constitutes acceptance of these 
  terms.  If you do not agree with these terms, please do not use, install, modify or 
  redistribute this Apple software.
  
  In consideration of your agreement to abide by the following terms, and subject to these 
  terms, Apple grants you a personal, non-exclusive license, under Apple's copyrights in
  this original Apple software (the "Apple Software"), to use, reproduce, modify and 
@@ skipping 90 matching lines @@
  
 // For compatibility with CFM browsers.
 int main(NPNetscapeFuncs *browserFuncs, NPPluginFuncs *pluginFuncs, NPP_ShutdownProcPtr *shutdown)
 {
     browser = malloc(sizeof(NPNetscapeFuncs));
     bzero(browser, sizeof(NPNetscapeFuncs));
     
     browser->size = browserFuncs->size;
     browser->version = browserFuncs->version;
     
-    // Since this is a mach-o plug-in and the browser is CFM because it is calling main, translate
+    // Since this is a mach-o plugin and the browser is CFM because it is calling main, translate
     // our function points into TVectors so the browser can call them.
     browser->geturl = (NPN_GetURLProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->geturl);
     browser->posturl = (NPN_PostURLProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->posturl);
     browser->requestread = (NPN_RequestReadProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->requestread);
     browser->newstream = (NPN_NewStreamProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->newstream);
     browser->write = (NPN_WriteProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->write);
     browser->destroystream = (NPN_DestroyStreamProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->destroystream);
     browser->status = (NPN_StatusProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->status);
     browser->uagent = (NPN_UserAgentProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->uagent);
     browser->memalloc = (NPN_MemAllocProcPtr)functionPointerForTVector((TransitionVector)browserFuncs->memalloc);
@@ skipping 134 matching lines @@
     FunctionPointer *newGlue = NULL;
     if (fp != NULL) {
         newGlue = (FunctionPointer *)malloc(2 * sizeof(FunctionPointer));
         if (newGlue != NULL) {
             newGlue[0] = fp;
             newGlue[1] = NULL;
         }
     }
     return (TransitionVector)newGlue;
 }