Browser Plugin: Reduce code repetition in BrowserPluginManager.

content/renderer/browser_plugin/mock_browser_plugin_manager.cc

Index: content/renderer/browser_plugin/mock_browser_plugin_manager.cc
diff --git a/content/renderer/browser_plugin/mock_browser_plugin_manager.cc b/content/renderer/browser_plugin/mock_browser_plugin_manager.cc
index 3522cc43c2d6faac4c943683d1ae43e322340f0d..347ae1d072bbe2f45e623ef72d860931d2ebac01 100644
--- a/content/renderer/browser_plugin/mock_browser_plugin_manager.cc
+++ b/content/renderer/browser_plugin/mock_browser_plugin_manager.cc
@@ -21,10 +21,10 @@ BrowserPlugin* MockBrowserPluginManager::CreateBrowserPlugin(
     RenderViewImpl* render_view,
     WebKit::WebFrame* frame,
     const WebKit::WebPluginParams& params) {
-  return new MockBrowserPlugin(browser_plugin_counter_++,
-                           render_view,
-                           frame,
-                           params);
+  return new MockBrowserPlugin(++browser_plugin_counter_,
+                               render_view,
+                               frame,
+                               params);
 }
 
 void MockBrowserPluginManager::Cleanup() {