Adding ThreadTaskRunnerHandle in lieu of MessageLoopProxy in net/cert and net/cookies module

MessageLoopProxy is deprecated.
This basically does a search and replace of:

MessageLoopProxy::current() -> ThreadTaskRunnerHandle::Get().

MessageLoopProxy -> SingleThreadTaskRunner

BUG=391045

Review URL: https://codereview.chromium.org/1124153005

Cr-Commit-Position: refs/heads/master@{#329998}

net/cert/nss_cert_database_chromeos_unittest.cc

@@ -6,8 +6,8 @@
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
+#include "base/thread_task_runner_handle.h"
 #include "crypto/nss_util_internal.h"
 #include "crypto/scoped_test_nss_chromeos_user.h"
 #include "crypto/scoped_test_nss_db.h"
@@ -61,7 +61,7 @@ class NSSCertDatabaseChromeOSTest : public testing::Test,
         crypto::GetPrivateSlotForChromeOSUser(
             user_1_.username_hash(),
             base::Callback<void(crypto::ScopedPK11Slot)>())));
-    db_1_->SetSlowTaskRunnerForTest(base::MessageLoopProxy::current());
+    db_1_->SetSlowTaskRunnerForTest(base::ThreadTaskRunnerHandle::Get());
     db_1_->SetSystemSlot(
         crypto::ScopedPK11Slot(PK11_ReferenceSlot(system_db_.slot())));
     db_2_.reset(new NSSCertDatabaseChromeOS(
@@ -69,7 +69,7 @@ class NSSCertDatabaseChromeOSTest : public testing::Test,
         crypto::GetPrivateSlotForChromeOSUser(
             user_2_.username_hash(),
             base::Callback<void(crypto::ScopedPK11Slot)>())));
-    db_2_->SetSlowTaskRunnerForTest(base::MessageLoopProxy::current());
+    db_2_->SetSlowTaskRunnerForTest(base::ThreadTaskRunnerHandle::Get());
 
     // Add observer to CertDatabase for checking that notifications from
     // NSSCertDatabaseChromeOS are proxied to the CertDatabase.

net/cert/nss_cert_database_unittest.cc

@@ -13,11 +13,11 @@
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/thread_task_runner_handle.h"
 #include "crypto/scoped_nss_types.h"
 #include "crypto/scoped_test_nss_db.h"
 #include "net/base/crypto_module.h"
@@ -131,7 +131,7 @@ TEST_F(CertDatabaseNSSTest, ListCerts) {
   // This test isn't terribly useful, though it will at least let valgrind test
   // for leaks.
   CertificateList certs;
-  cert_db_->SetSlowTaskRunnerForTest(base::MessageLoopProxy::current());
+  cert_db_->SetSlowTaskRunnerForTest(base::ThreadTaskRunnerHandle::Get());
   cert_db_->ListCerts(base::Bind(&SwapCertList, base::Unretained(&certs)));
   EXPECT_EQ(0U, certs.size());
 

net/cookies/cookie_monster.cc

@@ -54,12 +54,13 @@
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/profiler/scoped_tracker.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "base/thread_task_runner_handle.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/cookies/cookie_util.h"
@@ -393,7 +394,7 @@ class CookieMonster::CookieMonsterTask
   friend class base::RefCountedThreadSafe<CookieMonsterTask>;
 
   CookieMonster* cookie_monster_;
-  scoped_refptr<base::MessageLoopProxy> thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> thread_;
 
   DISALLOW_COPY_AND_ASSIGN(CookieMonsterTask);
 };
@@ -401,7 +402,7 @@ class CookieMonster::CookieMonsterTask
 CookieMonster::CookieMonsterTask::CookieMonsterTask(
     CookieMonster* cookie_monster)
     : cookie_monster_(cookie_monster),
-      thread_(base::MessageLoopProxy::current()) {
+      thread_(base::ThreadTaskRunnerHandle::Get()) {
 }
 
 CookieMonster::CookieMonsterTask::~CookieMonsterTask() {
@@ -2428,7 +2429,7 @@ CookieMonster::AddCallbackForCookie(const GURL& gurl,
   if (hook_map_.count(key) == 0)
     hook_map_[key] = make_linked_ptr(new CookieChangedCallbackList());
   return hook_map_[key]->Add(
-      base::Bind(&RunAsync, base::MessageLoopProxy::current(), callback));
+      base::Bind(&RunAsync, base::ThreadTaskRunnerHandle::Get(), callback));
 }
 
 #if defined(OS_ANDROID)