[SPDY] Incorporate latest framing changes from HTTP2 into SPDY 4 as SPDY 4a2.

chrome/common/chrome_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 "chrome/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 626 matching lines @@
 
 // Controls the support for SDCH filtering (dictionary based expansion of
 // content). By default SDCH filtering is enabled. To disable SDCH filtering,
 // use "--enable-sdch=0" as command line argument. SDCH is currently only
 // supported server-side for searches on google.com.
 const char kEnableSdch[]                    = "enable-sdch";
 
 // Disable SPDY/3.1. This is a temporary testing flag.
 const char kDisableSpdy31[]                 = "disable-spdy31";
 
-// Enable SPDY/4 alpha 1. This is a temporary testing flag.
-const char kEnableSpdy4a1[]                 = "enable-spdy4a1";
-
 // Enable SPDY CREDENTIAL frame support.  This is a temporary testing flag.
 const char kEnableSpdyCredentialFrames[]    = "enable-spdy-credential-frames";
 
 // Enables auto correction for misspelled words.
 const char kEnableSpellingAutoCorrect[]     = "enable-spelling-auto-correct";
 
 // Enables the stacked tabstrip.
 const char kEnableStackedTabStrip[]         = "enable-stacked-tab-strip";
 
 // Enables experimental suggestions pane in New Tab page.
@@ skipping 931 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