Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/extensions/activity_log/activity_log_browsertest.cc

Index: chrome/browser/extensions/activity_log/activity_log_browsertest.cc
diff --git a/chrome/browser/extensions/activity_log/activity_log_browsertest.cc b/chrome/browser/extensions/activity_log/activity_log_browsertest.cc
index 43664e4d6d39a44b0715c407e44148e084777d9e..1008a8a28c690cd8517c78974e7c87be717a58f4 100644
--- a/chrome/browser/extensions/activity_log/activity_log_browsertest.cc
+++ b/chrome/browser/extensions/activity_log/activity_log_browsertest.cc
@@ -4,6 +4,7 @@
 
 #include <stdint.h>
 
+#include "base/callback.h"
 #include "base/location.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
@@ -42,10 +43,11 @@ class ActivityLogPrerenderTest : public ExtensionApiTest {
   static void Prerender_Arguments(
       const std::string& extension_id,
       uint16_t port,
+      const base::Closure& quit_when_idle_closure,
       std::unique_ptr<std::vector<scoped_refptr<Action>>> i) {
-    // This is to exit RunLoop (base::MessageLoop::current()->Run()) below
-    base::ThreadTaskRunnerHandle::Get()->PostTask(
-        FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
+    // This is to exit RunLoop (run_loop.Run()) below

[sky, 2016/09/08 17:54:33]

end sentence with '.'. That said, this comment isn't particularly helpful. What
is 'this' in this context? I suggest nuking the comment.

[fdoray, 2016/09/09 18:10:50]

Actually, posting a QuitWhenIdleClosure() to the current MessageLoop has the
same effect as running the closure inline and is more complicated. I changed the
code to invoke |quit_when_idle_closure| directly.

+    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                  quit_when_idle_closure);
 
     ASSERT_TRUE(i->size());
     scoped_refptr<Action> last = i->front();
@@ -112,18 +114,14 @@ IN_PROC_BROWSER_TEST_F(ActivityLogPrerenderTest, TestScriptInjected) {
 
   page_observer.Wait();
 
+  base::RunLoop run_loop;
   activity_log->GetFilteredActions(
-      ext->id(),
-      Action::ACTION_ANY,
-      "",
-      "",
-      "",
-      -1,
-      base::Bind(
-          ActivityLogPrerenderTest::Prerender_Arguments, ext->id(), port));
+      ext->id(), Action::ACTION_ANY, "", "", "", -1,
+      base::Bind(ActivityLogPrerenderTest::Prerender_Arguments, ext->id(), port,
+                 run_loop.QuitWhenIdleClosure()));
 
   // Allow invocation of Prerender_Arguments
-  base::RunLoop().Run();
+  run_loop.Run();
 }
 
 }  // namespace extensions