Preload Instant search when omnibox is focused.

chrome/common/chrome_switches.cc

 // Copyright (c) 2011 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/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 763 matching lines @@
 // Optional PEM private key is to use in signing packaged .crx.
 const char kPackExtensionKey[]              = "pack-extension-key";
 
 // Specifies the path to the user data folder for the parent profile.
 const char kParentProfile[]                 = "parent-profile";
 
 // Forces the PPAPI version of Flash (if it's being used) to run in the
 // renderer process rather than in a separate plugin process.
 const char kPpapiFlashInProcess[]          = "ppapi-flash-in-process";
 
+// Aggressively preload the default search engine's Instant URL, so it's ready
+// to receive queries. Only has an effect if Instant is turned on (via "Enable
+// Instant for faster searching and browsing" in Preferences -> Basics).
+const char kPreloadInstantSearch[]          = "preload-instant-search";
+
 // Controls speculative prerendering of pages, and content prefetching.  Both
 // are dispatched from <link rel=prefetch href=...> elements.
 const char kPrerender[]                     = "prerender";
 // These are the values the switch may have, as in "--prerender=auto".
 //   auto: Allow field trial selection in both prerender and prefetch.
 const char kPrerenderSwitchValueAuto[]      = "auto";
 //   disabled: No prerendering or prefetching.
 const char kPrerenderSwitchValueDisabled[]  = "disabled";
 //   enabled: Both prerendering and prefetching.
 const char kPrerenderSwitchValueEnabled[]   = "enabled";
@@ skipping 384 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead,
 // please put them in alphabetical order above, or in order inside the
 // appropriate ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches