[asm.js] [wasm] Adds a UI flag for enabling the Wasm backend for Asm.js

chrome/browser/chrome_content_browser_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/browser/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 1617 matching lines @@
       spellcheck::switches::kEnableAndroidSpellChecker,
 #endif
       switches::kEnableBenchmarking,
       switches::kEnableNaCl,
 #if !defined(DISABLE_NACL)
       switches::kEnableNaClDebug,
       switches::kEnableNaClNonSfiMode,
 #endif
       switches::kEnableNetBenchmarking,
       switches::kEnableNewBookmarkApps,
+      switches::kEnableAsmWasm,

[jam, 2016/08/10 17:32:50]

since this is a command line flag that content knows about, move this line to
RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer

(that way the flag is propagated for all content-based browsers, not just
chrome)

[John, 2016/08/11 11:33:00]

Done.
As per offline talk, kEnableWasm was also moved to that method.

       switches::kEnableWasm,
 #if !defined(DISABLE_NACL)
       switches::kForcePNaClSubzero,
 #endif
       switches::kJavaScriptHarmony,
       switches::kMessageLoopHistogrammer,
       switches::kOriginTrialDisabledFeatures,
       switches::kOriginTrialPublicKey,
       switches::kPpapiFlashArgs,
       switches::kPpapiFlashPath,
@@ skipping 1414 matching lines @@
   if (channel <= kMaxDisableEncryptionChannel) {
     static const char* const kWebRtcDevSwitchNames[] = {
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)