Replace MessageLoopProxy usage with ThreadTaskRunnerHandle in chrome/browser/android module.

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

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

MessageLoopProxy -> SingleThreadTaskRunner

BUG=391045

Review URL: https://codereview.chromium.org/1108913006

Cr-Commit-Position: refs/heads/master@{#327511}

chrome/browser/android/logo_service.cc

@@ -5,6 +5,7 @@
 #include "chrome/browser/android/logo_service.h"
 
 #include "base/memory/weak_ptr.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/image_decoder.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
@@ -45,7 +46,7 @@ class LogoDecoderDelegate : public ImageDecoder::ImageRequest {
     // If the ImageDecoder crashes or otherwise never completes, call
     // OnImageDecodeTimedOut() eventually to ensure that image_decoded_callback_
     // is run.
-    base::MessageLoopProxy::current()->PostDelayedTask(
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, base::Bind(&LogoDecoderDelegate::OnDecodeImageFailed,
                               weak_ptr_factory_.GetWeakPtr()),
         base::TimeDelta::FromSeconds(kDecodeLogoTimeoutSeconds));

chrome/browser/android/signin/signin_manager_android.cc

@@ -14,6 +14,8 @@
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/prefs/pref_service.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browsing_data/browsing_data_helper.h"
@@ -55,7 +57,7 @@ class ProfileDataRemover : public BrowsingDataRemover::Observer {
  public:
   ProfileDataRemover(Profile* profile, const base::Closure& callback)
       : callback_(callback),
-        origin_loop_(base::MessageLoopProxy::current()),
+        origin_runner_(base::ThreadTaskRunnerHandle::Get()),
         remover_(BrowsingDataRemover::CreateForUnboundedRange(profile)) {
     remover_->AddObserver(this);
     remover_->Remove(BrowsingDataRemover::REMOVE_ALL, BrowsingDataHelper::ALL);
@@ -65,13 +67,13 @@ class ProfileDataRemover : public BrowsingDataRemover::Observer {
 
   void OnBrowsingDataRemoverDone() override {
     remover_->RemoveObserver(this);
-    origin_loop_->PostTask(FROM_HERE, callback_);
-    origin_loop_->DeleteSoon(FROM_HERE, this);
+    origin_runner_->PostTask(FROM_HERE, callback_);
+    origin_runner_->DeleteSoon(FROM_HERE, this);
   }
 
  private:
   base::Closure callback_;
-  scoped_refptr<base::MessageLoopProxy> origin_loop_;
+  scoped_refptr<base::SingleThreadTaskRunner> origin_runner_;
   BrowsingDataRemover* remover_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileDataRemover);