Generates predicates to test in diff functions in ComputedStyle

third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5

Index: third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5
diff --git a/third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5 b/third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5
index 0c84d05f0b9dd5f64b16de7bf6cdcb81b736a00e..aac622d291480d7efde228cce49da8e6569ac63d 100644
--- a/third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5
+++ b/third_party/WebKit/Source/core/css/ComputedStyleDiffFunctions.json5
@@ -11,11 +11,24 @@
     // A list of methods to diff (these can be public getters of fields or 
     // functions that use fields to determine a value).
     // Each entry is expressed as a dict of two fields.
-    // The fields are method - the method to be diffed and field_dependencies
-    // which lists the properties this method depends on.
+    // The fields are:
+    // 1. method - the method to be diffed
+    // 2. field_dependencies - lists the properties this method depends on.
     methods_to_diff: {
       default: [],
     },
+
+    // A list of predicates that have the diff logic built into them and are only
+    // called by the diff functions in ComputedStyle.
+    // Each entry is expressed as a dict of two fields.
+    // The fields are: 

[alancutter (OOO until 2018), 2017/05/25 01:59:20]

No need for this line, just end the previous line with :.

[nainar, 2017/05/25 02:04:26]

Done.

+    // 1. predicate - the predicate to be tested
+    // 2. field_dependencies -lists the properties this predicate test depends on.

[alancutter (OOO until 2018), 2017/05/25 01:59:20]

Missing space. Maybe use : instead of - to match what it'll actually look like.

[nainar, 2017/05/25 02:04:26]

Done.

+    // TODO: Note that you also have to pass in the arguments for the predicate. 
+    // This may be removed in the future if we are always passing the other ComputedStyle
+    predicates_to_test: {
+      default: [],
+    },
   },
   data: [
     {
@@ -45,6 +58,16 @@
             method: "BorderRightWidth()",
             field_dependencies: ["border-right-width"]
           }
+        ],
+        predicates_to_test: [
+          {
+            predicate: "TextShadowDataEquivalent(other)",
+            field_dependencies: ["text-shadow"]
+          },
+          {
+            predicate: "QuotesDataEquivalent(other)",
+            field_dependencies: ["quotes"]
+          },
         ]
     },
     {