Update EasyUnlockToggleFlow to disable all devices when turning off Smart Lock.

chrome/browser/signin/easy_unlock_toggle_flow.cc

 // Copyright 2014 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/signin/easy_unlock_toggle_flow.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
@@ skipping 70 matching lines @@
 }
 
 EasyUnlockToggleFlow::ToggleApiCall::~ToggleApiCall() {
 }
 
 GURL EasyUnlockToggleFlow::ToggleApiCall::CreateApiCallUrl() {
   return GURL(kEasyUnlockToggleUrl);
 }
 
 std::string EasyUnlockToggleFlow::ToggleApiCall::CreateApiCallBody() {
-  const char kBodyFormat[] = "{\"enable\":%s,\"publicKey\":\"%s\"}";
-  return base::StringPrintf(
-      kBodyFormat,
-      toggle_enable_ ? "true" : "false",
-      phone_public_key_.c_str());
+  const char kEnableBodyFormat[] = "{\"enable\": true,\"publicKey\":\"%s\"}";
+  const char kDisableBodyFormat[] =
+      "{ \"enable\": false, \"applyToAll\": true }";
+
+  if (toggle_enable_)
+    return base::StringPrintf(kEnableBodyFormat, phone_public_key_.c_str());
+  else
+    return std::string(kDisableBodyFormat);
 }
 
 std::string
 EasyUnlockToggleFlow::ToggleApiCall::CreateApiCallBodyContentType() {
   return "application/json";
 }
 
 void EasyUnlockToggleFlow::ToggleApiCall::ProcessApiCallSuccess(
     const net::URLFetcher* source) {
   flow_->ReportToggleApiCallResult(true);
@@ skipping 73 matching lines @@
 }
 
 void EasyUnlockToggleFlow::OnIssueAdviceSuccess(
     const IssueAdviceInfo& issue_advice) {
   NOTREACHED();
 }
 
 void EasyUnlockToggleFlow::ReportToggleApiCallResult(bool success) {
   callback_.Run(success);
 }