[Texmap][WebXR] Choose high power GPU when WebXR is enabled

• Component: WebXR
• Status: NEW ---

[Lauro Moura]

webxr/high-performance.html

240578@main / r281124 added an attribute to force the choice of a high-power GPU when WebXR is enabled. In WPE, as this attribute is ignored, and the test fails with:

--- /home/lauro/dev/WebKit/layout-test-results/webxr/high-performance-expected.txt                                                                                                                                                   
+++ /home/lauro/dev/WebKit/layout-test-results/webxr/high-performance-actual.txt                                                                                                                                                     
@@ -1,4 +1,4 @@                                                                                                                                                                                                                      
                                                                                                                                                                                                                                     
 Default: OK                                                                                                                                                                                                                         
-XR Compatible (should be high-performance): high-performance                                                                                                                                                                        
+XR Compatible (should be high-performance): default                                                                                                                                                                                 

Is this something we'll eventually want to support? Or something that we could just rebaseline?

PS: Just setting the attribute in the context constructor is enough to make the test pass. But without actually requesting the GPU, this feels kinda like "cheating" just to make it pass.

[Radar WebKit Bug Importer]

<rdar://problem/82586983>