Plugin Power Saver: Replace all "plug-in" with "plugin" for consistency.

components/plugins/renderer/webview_plugin.h

Index: components/plugins/renderer/webview_plugin.h
diff --git a/components/plugins/renderer/webview_plugin.h b/components/plugins/renderer/webview_plugin.h
index cb3f5a647f0e00bc1c18a791a25e6e15184e8b9e..3b7cd67c9202425f5b7fb94c521b54c0642bce37 100644
--- a/components/plugins/renderer/webview_plugin.h
+++ b/components/plugins/renderer/webview_plugin.h
@@ -60,9 +60,9 @@ class WebViewPlugin : public blink::WebPlugin,
 
   blink::WebView* web_view() { return web_view_; }
 
-  // When loading a plug-in document (i.e. a full page plug-in not embedded in
+  // When loading a plugin document (i.e. a full page plugin not embedded in
   // another page), we save all data that has been received, and replay it with
-  // this method on the actual plug-in.
+  // this method on the actual plugin.
   void ReplayReceivedData(blink::WebPlugin* plugin);
 
   void RestoreTitleText();