Adjust test expectations for infinite-size images.

components/test_runner/test_runner_for_specific_view.cc

Index: components/test_runner/test_runner_for_specific_view.cc
diff --git a/components/test_runner/test_runner_for_specific_view.cc b/components/test_runner/test_runner_for_specific_view.cc
index 7b9d08847be3dfa21cd7ac25e0ae4bdd050c5c91..2a1b55b7ecb0187bd47ebbf12215dd751b72e4dd 100644
--- a/components/test_runner/test_runner_for_specific_view.cc
+++ b/components/test_runner/test_runner_for_specific_view.cc
@@ -367,8 +367,13 @@ void TestRunnerForSpecificView::SendBluetoothManualChooserEvent(
 void TestRunnerForSpecificView::SetBackingScaleFactor(
     double value,
     v8::Local<v8::Function> callback) {
-  delegate()->SetDeviceScaleFactor(value);
-  PostV8Callback(callback);
+  bool use_zoom_for_dsf_enabled = delegate()->SetDeviceScaleFactor(value);
+
+  v8::UniquePersistent<v8::Function> global_callback(blink::mainThreadIsolate(),
+                                                     callback);
+  v8::Local<v8::Value> arg =
+      v8::Boolean::New(blink::mainThreadIsolate(), use_zoom_for_dsf_enabled);
+  PostV8CallbackWithArgs(std::move(global_callback), 1, &arg);
 }
 
 void TestRunnerForSpecificView::EnableUseZoomForDSF(