Merge "Merge changes from libvpx/master by cherry-pick" into nextgenv2

build/make/configure.sh

configure

test/add_noise_test.cc

test/convolve_test.cc

test/cx_set_ref.sh

test/datarate_test.cc

test/fdct4x4_test.cc

test/fdct8x8_test.cc

test/hadamard_test.cc

test/partial_idct_test.cc

test/pp_filter_test.cc

test/sad_test.cc

test/test_intra_pred_speed.cc

test/variance_test.cc

test/vp9_error_block_test.cc

test/vp9_intrapred_test.cc

third_party/googletest/README.libvpx

third_party/googletest/src/src/gtest-all.cc

vp10/common/idct.c

vp10/common/vp10_rtcd_defs.pl