Roll 4 dependencies

Roll third_party/glslang/ d253278f9..f257e0ea6 (9 commits)

d253278f98..f257e0ea6b

$ git log d253278f9..f257e0ea6 --date=short --no-merges --format='%ad %ae %s'
2020-08-14 john Build: fix a build warning
2020-08-14 rafael.fariasmarinheiro Use --test-root to pass files to Bazel tests.
2020-08-14 john Fix #2366, fix #2358, correctly separate out numerical feature checking
2020-08-14 john Non-functional (almost): Refactor when 'extensionRequested' is called.
2020-08-14 john Non-functional: Remove reinventing the scalar type, note code issues
2020-08-11 john Non-functional: spellings of "destinaton" and "addPairConversion"
2020-08-10 ezdiy GLSLANG_EXPORT for C APIs.
2020-08-07 john Non-functional: correctly do GL_EXT_buffer_reference2 semantic checking
2020-08-06 john Non-functional: consistently use 'const TSourceLoc&' to pass location.

Created with:
  roll-dep third_party/glslang

Roll third_party/shaderc/ ffd805115..21b36f736 (1 commit)

ffd805115e..21b36f7368

$ git log ffd805115..21b36f736 --date=short --no-merges --format='%ad %ae %s'
2020-08-17 rharrison Roll 4 dependencies (#1131)

Created with:
  roll-dep third_party/shaderc

Roll third_party/SPIRV-Tools/ b4c4da3e7..1023dd7a0 (6 commits)

b4c4da3e76..1023dd7a04

$ git log b4c4da3e7..1023dd7a0 --date=short --no-merges --format='%ad %ae %s'
2020-08-17 jackoalan Fix -Wrange-loop-analysis warning (#3712)
2020-08-17 andreperezmaselco.developer spirv-fuzz: Check header dominance when adding dead block (#3694)
2020-08-16 jaebaek Allow DebugTypeTemplate for Type operand (#3702)
2020-08-14 antonikarp spirv-fuzz: Improve code coverage of tests (#3686)
2020-08-14 stefanomil spirv-fuzz: Fuzzer pass to randomly apply loop preheaders (#3668)
2020-08-14 vasniktel spirv-fuzz: Support identical predecessors in TransformationPropagateInstructionUp (#3689)

Created with:
  roll-dep third_party/SPIRV-Tools

Roll third_party/tint/ 23c3fee35..b08e25388 (2 commits)

https://dawn.googlesource.com/tint/+log/23c3fee35436..b08e25388629

$ git log 23c3fee35..b08e25388 --date=short --no-merges --format='%ad %ae %s'
2020-08-17 sarahmashay [validation] Validates if return statement type matches function return type
2020-08-17 sarahmashay [validation] Validates function name uniqueness

Created with:
  roll-dep third_party/tint

Change-Id: I0c94f6a7f9f90a68ecdabfd6ce07e8e675dbfc13
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/26940
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>

DEPS

@@ -72,7 +72,7 @@ deps = {
 
   # SPIRV compiler dependencies: SPIRV-Tools, SPIRV-headers, glslang and shaderc
   'third_party/SPIRV-Tools': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@b4c4da3e76065180a7c5ce4ac6e5346e58833335',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@1023dd7a04be15064188d0e511e1708ef1c5af4a',
     'condition': 'dawn_standalone',
   },
   'third_party/spirv-headers': {
@@ -80,17 +80,17 @@ deps = {
     'condition': 'dawn_standalone',
   },
   'third_party/glslang': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/glslang@d253278f986574cb8e80ec9a4e84094ec1b25349',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/glslang@f257e0ea6b9aeab2dc7af3207ac6d29d2bbc01d0',
     'condition': 'dawn_standalone',
   },
   'third_party/shaderc': {
-    'url': '{chromium_git}/external/github.com/google/shaderc@ffd805115ed6672ff98ce27d2034ffe1646fd834',
+    'url': '{chromium_git}/external/github.com/google/shaderc@21b36f7368092216ecfaa017e95c383c2ed9db70',
     'condition': 'dawn_standalone',
   },
 
   # WGSL support
   'third_party/tint': {
-    'url': '{dawn_git}/tint@23c3fee35436cb4a2541722b9ef3628382401026',
+    'url': '{dawn_git}/tint@b08e25388629f5a8f467b726ace18df529bba3ef',
     'condition': 'dawn_standalone',
   },