DevTools: fix npm_test architecture check

third_party/WebKit/Source/devtools/scripts/npm_test.js

 // Copyright 2016 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.
 
 var childProcess = require('child_process');
 var fs = require('fs');
 var path = require('path');
 var shell = require('child_process').execSync;
 
 var utils = require('./utils');
@@ skipping 127 matching lines @@
   utils.removeRecursive(copiedFrontendPath);
   utils.removeRecursive(debugFrontendPath);
   utils.copyRecursive(SOURCE_PATH, devtoolsResourcesPath);
   fs.renameSync(copiedFrontendPath, debugFrontendPath);
   utils.copy(inspectorBackendCommandsPath, debugFrontendPath);
   utils.copy(supportedCSSPropertiesPath, debugFrontendPath);
 }
 
 function getPlatform() {
   if (process.platform === 'linux') {
-    if (process.arch === 'x64')
-      return 'Linux_x64';
-    throw new Error('Pre-compiled content shells are only available for x64 on Linux');
+    return 'Linux_x64';
   }
   if (process.platform === 'win32') {
-    if (process.arch === 'x64')
-      return 'Win_x64';
-    return 'Win';
+    return 'Win_x64';
   }
   if (process.platform === 'darwin')
     return 'Mac';
 
   throw new Error(`Unrecognized platform detected: ${process.platform}`);
 }
 
 function findMostRecentChromiumCommit() {
   var commitMessage = shell(`git log --max-count=1 --grep="Cr-Commit-Position"`).toString().trim();
   var commitPosition = commitMessage.match(/Cr-Commit-Position: refs\/heads\/master@\{#([0-9]+)\}/)[1];
@@ skipping 142 matching lines @@
 
 function getInspectorTests() {
   var specificTests = process.argv.filter(arg => utils.includes(arg, 'inspector'));
   if (specificTests.length)
     return specificTests;
   return [
     'inspector*',
     'http/tests/inspector*',
   ];
 }