chrome: chromeos: dbus: simplify ProxyResolutionServiceProvider unittest

chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc

Index: chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc
diff --git a/chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc b/chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc
index bbd2a4d685626d69aa85dab195bb3ac80de60e38..9cbbdf57a9ef32c72cbaf841d3fc0b5ae39d336d 100644
--- a/chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc
+++ b/chrome/browser/chromeos/dbus/proxy_resolution_service_provider_unittest.cc
@@ -261,10 +261,9 @@ class ProxyResolutionServiceProviderTest : public testing::Test {
         method_call,
         base::Bind(&ProxyResolutionServiceProviderTest::OnResponse,
                    base::Unretained(this)));
-    // Wait for a response.
-    while (!response_received_) {
+    // Check for a response.
+    if (!response_received_)
       message_loop_.Run();
-    }
     // Return response.
     return response_.release();
   }
@@ -273,9 +272,8 @@ class ProxyResolutionServiceProviderTest : public testing::Test {
   void OnResponse(dbus::Response* response) {
     response_.reset(response);
     response_received_ = true;
-    if (message_loop_.is_running()) {
-        message_loop_.Quit();
-    }
+    if (message_loop_.is_running())
+      message_loop_.Quit();
   }
 
   // Behaves as |mock_object_proxy_|'s ConnectToSignal().