[emscripten] Use wasm-friendly overload of setBindGroup

This was fixed in Firefox, so now we can use it! Tested in my local
sample project that this works in both Chrome and Firefox Nightly.

Migrated from emscripten-core/emscripten#21221

No-Try: true
Bug: emscripten-core/emscripten#20280
Change-Id: I0900e635a043413e516ec73b7de4978d4e574724
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/236936
Auto-Submit: Kai Ninomiya <[email protected]>
Commit-Queue: Kai Ninomiya <[email protected]>
Reviewed-by: Loko Kung <[email protected]>

Author: kainino0x

third_party/emdawnwebgpu/library_webgpu.js

@@ -1302,11 +1302,7 @@ var LibraryWebGPU = {
     if (dynamicOffsetCount == 0) {
       pass.setBindGroup(groupIndex, group);
     } else {
-      var offsets = [];
-      for (var i = 0; i < dynamicOffsetCount; i++, dynamicOffsetsPtr += 4) {
-        offsets.push({{{ gpu.makeGetU32('dynamicOffsetsPtr', 0) }}});
-      }
-      pass.setBindGroup(groupIndex, group, offsets);
+      pass.setBindGroup(groupIndex, group, HEAPU32, {{{ getHeapOffset('dynamicOffsetsPtr', 'u32') }}}, dynamicOffsetCount);
     }
   },
 
@@ -2191,11 +2187,7 @@ var LibraryWebGPU = {
     if (dynamicOffsetCount == 0) {
       pass.setBindGroup(groupIndex, group);
     } else {
-      var offsets = [];
-      for (var i = 0; i < dynamicOffsetCount; i++, dynamicOffsetsPtr += 4) {
-        offsets.push({{{ gpu.makeGetU32('dynamicOffsetsPtr', 0) }}});
-      }
-      pass.setBindGroup(groupIndex, group, offsets);
+      pass.setBindGroup(groupIndex, group, HEAPU32, {{{ getHeapOffset('dynamicOffsetsPtr', 'u32') }}}, dynamicOffsetCount);
     }
   },
 
@@ -2293,11 +2285,7 @@ var LibraryWebGPU = {
     if (dynamicOffsetCount == 0) {
       pass.setBindGroup(groupIndex, group);
     } else {
-      var offsets = [];
-      for (var i = 0; i < dynamicOffsetCount; i++, dynamicOffsetsPtr += 4) {
-        offsets.push({{{ gpu.makeGetU32('dynamicOffsetsPtr', 0) }}});
-      }
-      pass.setBindGroup(groupIndex, group, offsets);
+      pass.setBindGroup(groupIndex, group, HEAPU32, {{{ getHeapOffset('dynamicOffsetsPtr', 'u32') }}}, dynamicOffsetCount);
     }
   },