Bug 1068201 - Build SkBlurImage_opts_SSE4.cpp with SSE4.1 support on clang-cl; r=jrmuizel
Bug 1065122 - Count ProfilerBacktrace ctor/dtor. r=trivial

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extra : rebase_source : 2bfe5cd0e57136e6841e0829be882d0a8f3cd3e8