Adjust test expectations for infinite-size images.

content/shell/renderer/layout_test/blink_test_runner.cc

Index: content/shell/renderer/layout_test/blink_test_runner.cc
diff --git a/content/shell/renderer/layout_test/blink_test_runner.cc b/content/shell/renderer/layout_test/blink_test_runner.cc
index 76af0616fe51b6069d86bda1221e5dd23d7a1d0c..327550ab63f688487d2f9ba1d5d58c6a9fc8d8c9 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.cc
+++ b/content/shell/renderer/layout_test/blink_test_runner.cc
@@ -37,6 +37,7 @@
 #include "components/test_runner/web_test_interfaces.h"
 #include "components/test_runner/web_test_proxy.h"
 #include "components/test_runner/web_test_runner.h"
+#include "content/common/content_switches_internal.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/service_registry.h"
 #include "content/public/common/url_constants.h"
@@ -510,6 +511,10 @@ void BlinkTestRunner::EnableUseZoomForDSF() {
       AppendSwitch(switches::kEnableUseZoomForDSF);
 }
 
+bool BlinkTestRunner::IsUseZoomForDSFEnabled() {
+  return content::IsUseZoomForDSFEnabled();
+}
+
 void BlinkTestRunner::SetDeviceColorProfile(const std::string& name) {
   content::SetDeviceColorProfile(render_view(), name);
 }