Implement --v8-cache-options (instead of --enable-preparsed-js-caching)

content/public/common/web_preferences.cc

Index: content/public/common/web_preferences.cc
diff --git a/content/public/common/web_preferences.cc b/content/public/common/web_preferences.cc
index 13171ad3ebd94fc097db1d8e46104024fcc9346a..9d47d782ba8428d71a3f354c7b5251ad242e81d0 100644
--- a/content/public/common/web_preferences.cc
+++ b/content/public/common/web_preferences.cc
@@ -31,6 +31,15 @@ COMPILE_ASSERT_MATCHING_ENUMS(EDITING_BEHAVIOR_UNIX,
 COMPILE_ASSERT_MATCHING_ENUMS(EDITING_BEHAVIOR_ANDROID,
                               WebSettings::EditingBehaviorAndroid);
 
+COMPILE_ASSERT_MATCHING_ENUMS(V8_CACHE_OPTIONS_OFF,
+                              WebSettings::V8CacheOptionsOff);
+COMPILE_ASSERT_MATCHING_ENUMS(V8_CACHE_OPTIONS_PARSE,
+                              WebSettings::V8CacheOptionsParse);
+COMPILE_ASSERT_MATCHING_ENUMS(V8_CACHE_OPTIONS_CODE,
+                              WebSettings::V8CacheOptionsCode);
+COMPILE_ASSERT_MATCHING_ENUMS(V8_CACHE_OPTIONS_LAST,

[jochen (gone - plz use gerrit), 2014/08/06 11:27:57]

i think this one is not necessary

[vogelheim, 2014/08/06 11:34:10]

I agree, but... the whole triplicate enum + static_cast + assert seemed rather
fragile to me and this is the only check that would guard against /new/ values
being added and forgotten in one of the intermediate steps.

+                              WebSettings::V8CacheOptionsCode);
+
 WebPreferences::WebPreferences()
     : default_font_size(16),
       default_fixed_font_size(13),