Rolling 4 dependencies

Roll third_party/SPIRV-Tools/ 12e54dae1..2ee9aaa28 (11 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools/+log/12e54dae167c..2ee9aaa288d9

$ git log 12e54dae1..2ee9aaa28 --date=short --no-merges --format='%ad %ae %s'
2019-11-19 rharrison Initialize binary for use as guard later (#3058)
2019-11-19 stevenperron Handle OpPhi with no in operands in value numbering (#3056)
2019-11-19 stevenperron Kill the id-to-func map after wrap-opkill (#3055)
2019-11-18 rharrison Convert stderr and stdout in status to strings on assignment (#3049)
2019-11-14 dneto Update README (#3047)
2019-11-14 pierremoreau Update README (#3048)
2019-11-13 dneto Avoid uninit warning in GCC (#3044)
2019-10-23 bclayton utils/vscode: Add SPIR-V language server support
2019-11-11 bclayton utils/vscode: Add go language server packages.
2019-11-12 alanbaker Fix operand access of composite in upgrade memory model (#3021)
2019-11-12 alanbaker Validate array stride does not cause overlap (#3028)

Roll third_party/glslang/ 37dcb8945..f4d466852 (1 commit)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/37dcb894574e..f4d4668529f1

$ git log 37dcb8945..f4d466852 --date=short --no-merges --format='%ad %ae %s'
2019-11-14 cepheus HLSL: Fix #1976: Don't let ENABLE_HLSL change struct/class layout.

Roll third_party/shaderc/ 0865050e5..c7f5cfd07 (11 commits)

https://chromium.googlesource.com/external/github.com/google/shaderc/+log/0865050e54e9..c7f5cfd07f41

$ git log 0865050e5..c7f5cfd07 --date=short --no-merges --format='%ad %ae %s'
2019-11-20 rharrison Rolling 4 dependencies (#897)
2019-11-19 rharrison Migrate away from nosetest to unittest (#896)
2019-11-18 9856269+sarahM0 Add spvc parser support for control flow instructions (#894)
2019-11-15 dneto Android.mk: Avoid polluting NDK build's test tree. (#888)
2019-11-15 rharrison Add access to MSL options needed by Dawn (#893)
2019-11-14 9856269+sarahM0 Add spvc parser support for all OpConstant.* and OpSpecConstant.* (#886)
2019-11-13 dneto Android.mk: Fix detection of spirv-headers directory (#887)
2019-11-13 9856269+sarahM0 Add spvc parser support and unit tests for: OpTypeMatrix, OpTypeRuntimeArray, OpTypeImage, OpTypeSampler, OpTypeSampledImage (#885)
2019-11-13 rharrison Remove the deprectated all-in-one generation API (#883)
2019-11-13 rharrison Expose spirv_cross compiler to ease integration into Dawn (#884)
2019-11-13 9856269+sarahM0 Add spvc parser support and unit tests for: OpTypeBool, OpTypeFloat, … (#881)

Roll third_party/spirv-headers/ af64a9e82..204cd131c (2 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers/+log/af64a9e826bf..204cd131c42b

$ git log af64a9e82..204cd131c --date=short --no-merges --format='%ad %ae %s'
2019-11-20 Tobias.Hector Off-by-one errors
2019-11-20 Tobias.Hector Reserve a new block of 64 opcodes

Created with:
  roll-dep third_party/SPIRV-Tools third_party/glslang third_party/shaderc third_party/spirv-cross third_party/spirv-headers

Change-Id: Id1417493410e35b951d1d4623576b11fa2baab2b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13840
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
diff --git a/DEPS b/DEPS
index 15130e7..e882995 100644
--- a/DEPS
+++ b/DEPS
@@ -56,19 +56,19 @@
 
   # SPIRV compiler dependencies: SPIRV-Tools, SPIRV-headers, glslang and shaderc
   'third_party/SPIRV-Tools': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@12e54dae167c8ea2c194447805ac6f96f09448f6',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@2ee9aaa288d91fbaec5bc51473169c079c764240',
     'condition': 'dawn_standalone',
   },
   'third_party/spirv-headers': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Headers@af64a9e826bf5bb5fcd2434dd71be1e41e922563',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Headers@204cd131c42b90d129073719f2766293ce35c081',
     'condition': 'dawn_standalone',
   },
   'third_party/glslang': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/glslang@37dcb894574e94a876c0165c4df96eeba68e6a5a',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/glslang@f4d4668529f1dad0e475295456b601353fe7cf33',
     'condition': 'dawn_standalone',
   },
   'third_party/shaderc': {
-    'url': '{chromium_git}/external/github.com/google/shaderc@0865050e54e93bb1b0f122780246892a1164bb26',
+    'url': '{chromium_git}/external/github.com/google/shaderc@c7f5cfd07f41c997045d76fd09c934691ff8a6c6',
     'condition': 'dawn_standalone',
   },