Replace --add-to-shelf flag with kAppBanners feature.

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"
 #include "build/build_config.h"
 #include "ppapi/features/features.h"
@@ skipping 152 matching lines @@
 
 // Triggers a plethora of diagnostic modes.
 const char kDiagnostics[]                   = "diagnostics";
 
 // Sets the output format for diagnostic modes enabled by diagnostics flag.
 const char kDiagnosticsFormat[]             = "diagnostics-format";
 
 // Tells the diagnostics mode to do the requested recovery step(s).
 const char kDiagnosticsRecovery[]           = "diagnostics-recovery";
 
-// Disables the display of a banner allowing the user to add a web
-// app to their shelf (or platform-specific equivalent)
-const char kDisableAddToShelf[] = "disable-add-to-shelf";
-
 // Disable several subsystems which run network requests in the background.
 // This is for use when doing network performance testing to avoid noise in the
 // measurements.
 const char kDisableBackgroundNetworking[]   = "disable-background-networking";
 
 // Disables the bundled PPAPI version of Flash.
 const char kDisableBundledPpapiFlash[]      = "disable-bundled-ppapi-flash";
 
 // Disable hardware encoding support for Cast Streaming.
 const char kDisableCastStreamingHWEncoding[] =
@@ skipping 104 matching lines @@
 
 const char kDnsLogDetails[]                 = "dns-log-details";
 
 // Requests that a running browser process dump its collected histograms to a
 // given file. The file is overwritten if it exists.
 const char kDumpBrowserHistograms[]         = "dump-browser-histograms";
 
 // Overrides the path of Easy Unlock component app.
 const char kEasyUnlockAppPath[]             = "easy-unlock-app-path";
 
-// Enables the display of a banner allowing the user to add a web
-// app to their shelf (or platform-specific equivalent)
-const char kEnableAddToShelf[] = "enable-add-to-shelf";
-
 // If the WebRTC logging private API is active, enables audio debug recordings.
 const char kEnableAudioDebugRecordingsFromExtension[] =
     "enable-audio-debug-recordings-from-extension";
 
 // Inform users that their browser is being controlled by an automated test.
 const char kEnableAutomation[] = "enable-automation";
 
 // Enables the benchmarking extensions.
 const char kEnableBenchmarking[]            = "enable-benchmarking";
 
@@ skipping 863 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR VERY NICE FLAGS 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