Throw static IOException instance in StringCharStream to avoid
unnecessary overhead in exception construction. This is safe because
StringCharStream uses IOException purely for flow control; the stack
trace information is not used. Some internal benchmarks show that this
could save approximately 5% of CPU time.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=79280875
Insert whitespaces after escape sequences as required by the CSS spec.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=79599272
Configure ant to always interpret source files as UTF-8.
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=79769893
Adds the perspective function.

http://www.w3.org/TR/css3-transforms/
http://msdn.microsoft.com/en-us/library/ie/jj200271(v=vs.85).aspx
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Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=79780788