Devtools Animations: Add method to fetch CSS keyframed animations

third_party/WebKit/Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications.",
@@ skipping 3103 matching lines @@
             },
             {
                 "id": "PlatformFontUsage",
                 "type": "object",
                 "properties": [
                     { "name": "familyName", "type": "string", "description": "Font's family name reported by platform."},
                     { "name": "glyphCount", "type": "number", "description": "Amount of glyphs that were rendered with this font."}
                 ],
                 "description": "Information about amount of glyphs that were rendered with given font.",
                 "hidden": true
+            },
+            {
+                "id": "CSSKeyframesRule",
+                "type": "object",
+                "properties": [
+                    { "name": "animationName", "type": "string", "description": "Animation name." },
+                    { "name": "keyframes", "type": "array", "items": { "$ref": "CSSKeyframeRule" }, "description": "List of keyframes." }
+                ],
+                "description": "CSS keyframes rule representation."
+            },
+            {
+                "id": "CSSKeyframeRule",
+                "type": "object",
+                "properties": [
+                    { "name": "keyText", "type": "string", "description": "Associated key text." },
+                    { "name": "style", "$ref": "CSSStyle", "description": "Associated style declaration." }
+                ],
+                "description": "CSS keyframe rule representation."
             }
         ],
         "commands": [
             {
                 "name": "enable",
                 "async": true,
                 "description": "Enables the CSS agent for the given page. Clients should not assume that the CSS agent has been enabled until the result of this command is received."
             },
             {
                 "name": "disable",
@@ skipping 39 matching lines @@
                 "parameters": [
                     { "name": "nodeId", "$ref": "DOM.NodeId" }
                 ],
                 "returns": [
                     { "name": "fonts", "type": "array", "items": { "$ref": "PlatformFontUsage" }, "description": "Usage statistics for every employed platform font." }
                 ],
                 "description": "Requests information about platform fonts which we used to render child TextNodes in the given node.",
                 "hidden": true
             },
             {
+                "name": "getCSSAnimationsForNode",
+                "parameters": [
+                    { "name": "nodeId", "$ref": "DOM.NodeId" }
+                ],
+                "returns": [
+                    { "name": "cssKeyframesRules", "type": "array", "items": { "$ref": "CSSKeyframesRule" }, "optional": true, "description": "A list of CSS keyframed animations matching this node." }
+                ],
+                "description": "Returns all CSS keyframed animations mtaching this node."
+            },
+            {
                 "name": "getStyleSheetText",
                 "parameters": [
                     { "name": "styleSheetId", "$ref": "StyleSheetId" }
                 ],
                 "returns": [
                     { "name": "text", "type": "string", "description": "The stylesheet text." }
                 ],
                 "description": "Returns the current textual content and the URL for a stylesheet."
             },
             {
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                 ],
                 "returns": [
                     { "name": "accessibilityNode", "$ref": "AXNode", "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists.", "optional": true }
                 ],
                 "description": "Fetches the accessibility node for this DOM node, if it exists.",
                 "hidden": true
             }
         ]
     }]
 }