blimp: Update animation policy for images on the blimp engine.

blimp/engine/app/settings_manager_unittest.cc

Index: blimp/engine/app/settings_manager_unittest.cc
diff --git a/blimp/engine/app/settings_manager_unittest.cc b/blimp/engine/app/settings_manager_unittest.cc
index 2b6a2d2171ba874d1b5dd2fb4d4ce839bc5ee6a9..8d456520c730ecba8a1477cf14bc1e669fbcc255 100644
--- a/blimp/engine/app/settings_manager_unittest.cc
+++ b/blimp/engine/app/settings_manager_unittest.cc
@@ -40,6 +40,25 @@ TEST_F(SettingsManagerTest, InformsObserversCorrectly) {
   settings_manager_.UpdateEngineSettings(settings);
 }
 
+TEST_F(SettingsManagerTest, UpdatesSettingsCorrectly) {
+  EngineSettings settings = settings_manager_.GetEngineSettings();
+  EXPECT_FALSE(settings.record_whole_document);
+  EXPECT_EQ(settings.animation_policy,
+            content::ImageAnimationPolicy::IMAGE_ANIMATION_POLICY_NO_ANIMATION);
+
+  settings.record_whole_document = true;
+  settings.animation_policy =
+      content::ImageAnimationPolicy::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE;
+  settings_manager_.UpdateEngineSettings(settings);
+
+  content::WebPreferences prefs;
+  settings_manager_.UpdateWebkitPreferences(&prefs);
+  EXPECT_TRUE(prefs.record_whole_document);
+  EXPECT_EQ(
+      prefs.animation_policy,
+      content::ImageAnimationPolicy::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE);
+}
+
 }  // namespace
 
 }  // namespace engine