Adding --disable-plugins-discovery command line switch to not load third-party plugins from common …

content/public/common/content_switches.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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 438 matching lines @@
 // pinch gestures.
 const char kEnableViewport[]                = "enable-viewport";
 
 // Enables experimental features for the geolocation API.
 // Current features:
 // - CoreLocation support for Mac OS X 10.6
 // - Gateway location for Linux and Windows
 // - Location platform support for Windows 7
 const char kExperimentalLocationFeatures[]  = "experimental-location-features";
 
-// Load NPAPI plugins from the specified directory.
-const char kExtraPluginDir[]                = "extra-plugin-dir";
-
 // If accelerated compositing is supported, always enter compositing mode for
 // the base layer even when compositing is not strictly required.
 const char kForceCompositingMode[]          = "force-compositing-mode";
 
 // This flag disables force compositing mode and prevents it from being enabled
 // via field trials.
 const char kDisableForceCompositingMode[]   = "disable-force-compositing-mode";
 
 // Some field trials may be randomized in the browser, and the randomly selected
 // outcome needs to be propagated to the renderer. For instance, this is used
@@ skipping 47 matching lines @@
 
 // Run the GPU process as a thread in the browser process.
 const char kInProcessGPU[]                  = "in-process-gpu";
 
 // Runs plugins inside the renderer process
 const char kInProcessPlugins[]              = "in-process-plugins";
 
 // Specifies the flags passed to JS engine
 const char kJavaScriptFlags[]               = "js-flags";
 
+// Load NPAPI plugins from the specified directory.
+const char kExtraPluginDir[]                = "extra-plugin-dir";
+
 // Load an NPAPI plugin from the specified path.
 const char kLoadPlugin[]                    = "load-plugin";
 
+// Disable discovering third-party plug-ins. Effectively loading only
+// ones shipped with the browser plus third-party ones as specified by
+// --extra-plugin-dir and --load-plugin switches.
+const char kDisablePluginsDiscovery[]       = "disable-plugins-discovery";
+
 // Sets the minimum log level. Valid values are from 0 to 3:
 // INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3.
 const char kLoggingLevel[]                  = "log-level";
 
 // Make plugin processes log their sent and received messages to VLOG(1).
 const char kLogPluginMessages[]             = "log-plugin-messages";
 
 // Sample memory usage with high frequency and store the results to the
 // Renderer.Memory histogram. Used in memory tests.
 const char kMemoryMetrics[]                 = "memory-metrics";
@@ skipping 308 matching lines @@
 // Forward overscroll event data from the renderer to the browser.
 const char kEnableOverscrollNotifications[] = "enable-overscroll-notifications";
 
 // Enables 'image/webp' accept header for image requests.
 const char kEnableWebPInAcceptHeader[] = "enable-webp-in-accept-header";
 
 // Enables WebGL extensions not yet approved by the community.
 const char kEnableWebGLDraftExtensions[] = "enable-webgl-draft-extensions";
 
 }  // namespace switches