Revert of Update libwebp and resume testing scaled webp

gyp/libwebp.gyp

Index: gyp/libwebp.gyp
diff --git a/gyp/libwebp.gyp b/gyp/libwebp.gyp
index 0122be6a8c08246b64dfd5d083772927abdc88fe..fc6f46c309c481aade52e3cd759a3efd60a93126 100644
--- a/gyp/libwebp.gyp
+++ b/gyp/libwebp.gyp
@@ -66,33 +66,18 @@
           ],
           'sources': [
             '../third_party/externals/libwebp/src/dsp/alpha_processing.c',
-            '../third_party/externals/libwebp/src/dsp/alpha_processing_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/alpha_processing_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/alpha_processing_sse41.c',
             '../third_party/externals/libwebp/src/dsp/cpu.c',
             '../third_party/externals/libwebp/src/dsp/dec.c',
             '../third_party/externals/libwebp/src/dsp/dec_clip_tables.c',
-            '../third_party/externals/libwebp/src/dsp/dec_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/dec_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/dec_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/dec_sse41.c',
             '../third_party/externals/libwebp/src/dsp/enc.c',
             '../third_party/externals/libwebp/src/dsp/enc_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/filters.c',
-            '../third_party/externals/libwebp/src/dsp/filters_mips_dsp_r2.c',
-            '../third_party/externals/libwebp/src/dsp/filters_sse2.c',
             '../third_party/externals/libwebp/src/dsp/lossless.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/lossless_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/rescaler.c',
-            '../third_party/externals/libwebp/src/dsp/rescaler_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/rescaler_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/upsampling.c',
-            '../third_party/externals/libwebp/src/dsp/upsampling_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/upsampling_sse2.c',
             '../third_party/externals/libwebp/src/dsp/yuv.c',
-            '../third_party/externals/libwebp/src/dsp/yuv_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/yuv_mips_dsp_r2.c',
             '../third_party/externals/libwebp/src/dsp/yuv_sse2.c',
           ],
           'cflags': [ '-w' ],
@@ -136,35 +121,6 @@
           ],
         },
         {
-          'target_name': 'libwebp_dsp_enc',
-          'type': 'static_library',
-          'includes': [
-            'libwebp_skia.gypi',
-          ],
-          'include_dirs': [
-              '../third_party/externals/libwebp',
-          ],
-          'sources': [
-            '../third_party/externals/libwebp/src/dsp/argb.c',
-            '../third_party/externals/libwebp/src/dsp/argb_mips_dsp_r2.c',
-            '../third_party/externals/libwebp/src/dsp/argb_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/cost.c',
-            '../third_party/externals/libwebp/src/dsp/cost_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/cost_mips_dsp_r2.c',
-            '../third_party/externals/libwebp/src/dsp/cost_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/enc_avx2.c',
-            '../third_party/externals/libwebp/src/dsp/enc_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/enc_mips_dsp_r2.c',
-            '../third_party/externals/libwebp/src/dsp/enc_sse41.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc_mips32.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc_mips_dsp_r2.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc_neon.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc_sse2.c',
-            '../third_party/externals/libwebp/src/dsp/lossless_enc_sse41.c',
-          ],
-        },
-        {
           'target_name': 'libwebp_enc',
           'type': 'static_library',
           'includes': [
@@ -172,9 +128,6 @@
           ],
           'include_dirs': [
               '../third_party/externals/libwebp',
-          ],
-          'dependencies' : [
-            'libwebp_dsp_enc',
           ],
           'sources': [
             '../third_party/externals/libwebp/src/enc/alpha.c',
@@ -186,12 +139,8 @@
             '../third_party/externals/libwebp/src/enc/frame.c',
             '../third_party/externals/libwebp/src/enc/histogram.c',
             '../third_party/externals/libwebp/src/enc/iterator.c',
-            '../third_party/externals/libwebp/src/enc/near_lossless.c',
             '../third_party/externals/libwebp/src/enc/picture.c',
             '../third_party/externals/libwebp/src/enc/picture_csp.c',
-            '../third_party/externals/libwebp/src/enc/picture_psnr.c',
-            '../third_party/externals/libwebp/src/enc/picture_rescale.c',
-            '../third_party/externals/libwebp/src/enc/picture_tools.c',
             '../third_party/externals/libwebp/src/enc/quant.c',
             '../third_party/externals/libwebp/src/enc/syntax.c',
             '../third_party/externals/libwebp/src/enc/token.c',