Plugin Power Saver: --enable-plugin-power-saver only overrides ALLOW.

chrome/renderer/chrome_content_renderer_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/chrome_content_renderer_client.h"
 
 #include "base/command_line.h"
 #include "base/debug/crash_logging.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
@@ skipping 684 matching lines @@
     }
 
     // Allow full-screen plug-ins for left-click-to-play.
     if (status_value == ChromeViewHostMsg_GetPluginInfo_Status::kClickToPlay &&
         !frame->parent() && !frame->opener() &&
         frame->document().isPluginDocument()) {
       status_value = ChromeViewHostMsg_GetPluginInfo_Status::kAllowed;
     }
 
 #if defined(ENABLE_PLUGINS)
-    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+    if (status_value == ChromeViewHostMsg_GetPluginInfo_Status::kAllowed &&
+        base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kEnablePluginPowerSaver)) {
       status_value =
           ChromeViewHostMsg_GetPluginInfo_Status::kPlayImportantContent;
     }
 #endif
 
 #if defined(OS_WIN)
     // In Windows we need to check if we can load NPAPI plugins.
     // For example, if the render view is in the Ash desktop, we should not.
     if (status_value == ChromeViewHostMsg_GetPluginInfo_Status::kAllowed &&
@@ skipping 873 matching lines @@
   if (mime_type == content::kBrowserPluginMimeType) {
     return new extensions::ExtensionsGuestViewContainer(render_frame);
   } else {
     return new extensions::MimeHandlerViewContainer(
         render_frame, mime_type, original_url);
   }
 #else
   return NULL;
 #endif
 }