Support evaluation of <boolean-expr[ style( <style-query> ) ]> queries

Note: Evaluation of media() queries is not supported yet, to be done in
next CL.

Bug: 346977961
Change-Id: I109120002fa8df8ad1e498d43ef5197abd0563a5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6291331
Reviewed-by: Anders Hartvoll Ruud <[email protected]>
Commit-Queue: Munira Tursunova <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1423216}

Author: tursunova

css/css-values/if-style-query.html

@@ -193,6 +193,30 @@
           else: false_value)`,
         [],
         'false_value');
+  test_if(`if(not style(--non-existent): true_value;
+          else: false_value)`,
+        [],
+        'true_value');
+  test_if(`if(not style(--x: 0): true_value;
+          else: false_value)`,
+        [['--x', '3']],
+        'true_value');
+  test_if(`if(style(--x: 0) and style(--y: 3): true_value;
+          else: false_value)`,
+        [['--x', '3'], ['--y', '3']],
+        'false_value');
+  test_if(`if(style(--x: 3) and style(--y: 3): true_value;
+          else: false_value)`,
+        [['--x', '3'], ['--y', '3']],
+        'true_value');
+  test_if(`if(style(--x: 0) or style(--y: 3): true_value;
+          else: false_value)`,
+        [['--x', '3'], ['--y', '3']],
+        'true_value');
+  test_if(`if(style(--x: 0) or (style(--y: 3) and style(--z: 3)): true_value;
+          else: false_value)`,
+        [['--x', '3'], ['--y', '3'], ['--z', '3']],
+        'true_value');
 
   // Valid if() with multiple conditions with unregistered custom properties
   test_if(`if(style(--non-existent): value1;