Move more data from .data to the .rodata section

Move more data from .data to the .rodata section so that it can be shared
between different instances of the library on mobile / Android.

In particular, the following data was moved:
- Property names in the generated TypeBuilder class
- s_resourceType in SVG rendering classes
- InspectorDebuggerAgent::backtraceObjectGroup string
- TextEncodingRegistry's textEncodingNameBlacklist array

This also got rid of 7 relocations according to relinfo.

R=abarth
BUG=249746

Review URL: https://codereview.chromium.org/32713002

git-svn-id: svn://svn.chromium.org/blink/trunk@160371 bbb929c8-8fbe-4397-9dbb-9b2b20218538