layout_test_helper crashed if there is no "1" color profile on Mac

components/test_runner/helper/layout_test_helper_mac.mm

Index: components/test_runner/helper/layout_test_helper_mac.mm
diff --git a/components/test_runner/helper/layout_test_helper_mac.mm b/components/test_runner/helper/layout_test_helper_mac.mm
index b787cdcab16760ffdaf690eb6e545cb3194fbdb6..cacf1ad873950343dfc17dcd049e41b0f8d17643 100644
--- a/components/test_runner/helper/layout_test_helper_mac.mm
+++ b/components/test_runner/helper/layout_test_helper_mac.mm
@@ -70,22 +70,51 @@ void InstallLayoutTestColorProfile() {
       return;
     }
 
+    CFDictionaryRef factory_info =
+        (CFDictionaryRef)CFDictionaryGetValue(device_info,
+                                              kColorSyncFactoryProfiles);
+
+    if (!factory_info) {
+      NSLog(@"No no factory info; not setting main display's color "
+             "profile.");
+      CFRelease(device_info);
+      CFRelease(main_display_id);
+      return;
+    }
+
+    CFStringRef default_profile_id =
+        (CFStringRef)CFDictionaryGetValue(factory_info,
+                                          kColorSyncDeviceDefaultProfileID);
+
+    if (!default_profile_id) {
+      NSLog(@"No no default profile id; not setting main display's color "
+             "profile.");
+      CFRelease(factory_info);
+      CFRelease(device_info);
+      CFRelease(main_display_id);
+      return;
+    }
+
     CFDictionaryRef profile_info = (CFDictionaryRef)CFDictionaryGetValue(
         device_info, kColorSyncCustomProfiles);
     if (profile_info) {
       user_color_profile_url =
-          (CFURLRef)CFDictionaryGetValue(profile_info, CFSTR("1"));
+          (CFURLRef)CFDictionaryGetValue(profile_info, default_profile_id);
       CFRetain(user_color_profile_url);
     } else {
       profile_info = (CFDictionaryRef)CFDictionaryGetValue(
           device_info, kColorSyncFactoryProfiles);
       CFDictionaryRef factory_profile =
-          (CFDictionaryRef)CFDictionaryGetValue(profile_info, CFSTR("1"));
+          (CFDictionaryRef)CFDictionaryGetValue(profile_info,
+                                                default_profile_id);
       user_color_profile_url = (CFURLRef)CFDictionaryGetValue(
           factory_profile, kColorSyncDeviceProfileURL);
       CFRetain(user_color_profile_url);
     }
 
+    CFRelease(default_profile_id);
+    CFRelease(factory_info);
+    CFRelease(device_info);
     CFRelease(device_info);
   }