Make examples and utils use webgpu.h

BUG=dawn:22

Change-Id: I602d6a3422b493d199f3fded61ff1666bc2d9d7d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12702
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
diff --git a/src/tests/end2end/ClipSpaceTests.cpp b/src/tests/end2end/ClipSpaceTests.cpp
index 6d5e9da..e694a68 100644
--- a/src/tests/end2end/ClipSpaceTests.cpp
+++ b/src/tests/end2end/ClipSpaceTests.cpp
@@ -15,7 +15,7 @@
 #include "tests/DawnTest.h"
 
 #include "utils/ComboRenderPipelineDescriptor.h"
-#include "utils/DawnHelpers.h"
+#include "utils/WGPUHelpers.h"
 
 class ClipSpaceTest : public DawnTest {
   protected: