DevTools: consolidate protocol generators for front-end, backend and type builder.

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 55 matching lines @@
                 "parameters": [
                     { "name": "level", "$ref": "PressureLevel", "description": "Memory pressure level of the notification." }
                 ],
                 "handlers": ["browser"]
             }
         ]
     },
     {
         "domain": "Page",
         "description": "Actions and events related to the inspected page belong to the page domain.",
+        "depends": ["Debugger"],

[dgozman, 2016/05/26 20:55:30]

It's called "deps" or "dependencies" in many other places, let's converge?

         "types": [
             {
                 "id": "ResourceType",
                 "type": "string",
                 "enum": ["Document", "Stylesheet", "Image", "Media", "Font", "Script", "TextTrack", "XHR", "Fetch", "EventSource", "WebSocket", "Manifest", "Other"],
                 "description": "Resource type as it was perceived by the rendering engine."
             },
             {
               "id": "FrameId",
               "type": "string",
@@ skipping 990 matching lines @@
                     { "name": "object", "$ref": "RemoteObject" },
                     { "name": "hints", "type": "object" }
                 ],
                 "hidden": true
             }
         ]
     },
     {
         "domain": "Console",
         "description": "Console domain defines methods and events for interaction with the JavaScript console. Console collects messages created by means of the <a href='http://getfirebug.com/wiki/index.php/Console_API'>JavaScript Console API</a>. One needs to enable this domain using <code>enable</code> command in order to start receiving the console messages. Browser collects messages issued while console domain is not enabled as well and reports them using <code>messageAdded</code> notification upon enabling.",
+        "depends": ["Runtime"],
         "types": [
             {
                 "id": "Timestamp",
                 "type": "number",
                 "description": "Number of seconds since epoch.",
                 "hidden": true
             },
             {
                 "id": "ConsoleMessage",
                 "type": "object",
@@ skipping 2299 matching lines @@
                 "parameters": [
                     { "name": "handle", "$ref": "StreamHandle", "description": "Handle of the stream to close." }
                 ],
                 "handlers": ["browser"]
             }
         ]
     },
     {
         "domain": "Debugger",
         "description": "Debugger domain exposes JavaScript debugging capabilities. It allows setting and removing breakpoints, stepping through execution, exploring stack traces, etc.",
+        "depends": ["Runtime"],
         "types": [
             {
                 "id": "BreakpointId",
                 "type": "string",
                 "description": "Breakpoint identifier."
             },
             {
                 "id": "CallFrameId",
                 "type": "string",
                 "description": "Call frame identifier."
@@ skipping 508 matching lines @@
                 ],
                 "returns": [
                     { "name": "listeners", "type": "array", "items": { "$ref": "EventListener" }, "description": "Array of relevant listeners." }
                 ],
                 "description": "Returns event listeners of the given object."
             }
         ]
     },
     {
         "domain": "Profiler",
+        "depends": ["Runtime"],
         "hidden": true,
         "types": [
             {
                 "id": "CPUProfileNode",
                 "type": "object",
                 "description": "CPU Profile node. Holds callsite information, execution statistics and child nodes.",
                 "properties": [
                     { "name": "functionName", "type": "string", "description": "Function name." },
                     { "name": "scriptId", "$ref": "Runtime.ScriptId", "description": "Script identifier." },
                     { "name": "url", "type": "string", "description": "URL." },
@@ skipping 70 matching lines @@
                     { "name": "id", "type": "string" },
                     { "name": "location", "$ref": "Debugger.Location", "description": "Location of console.profileEnd()." },
                     { "name": "profile", "$ref": "CPUProfile" },
                     { "name": "title", "type": "string", "optional": true, "description": "Profile title passed as argunet to console.profile()." }
                 ]
             }
         ]
     },
     {
         "domain": "HeapProfiler",
+        "depends": ["Runtime"],
         "hidden": true,
         "types": [
             {
                 "id": "HeapSnapshotObjectId",
                 "type": "string",
                 "description": "Heap snapshot object id."
             },
             {
                 "id": "SamplingHeapProfileNode",
                 "type": "object",
@@ skipping 1135 matching lines @@
                 "parameters": [
                     { "name": "origin", "type": "string", "description": "Security origin." },
                     { "name": "storageTypes", "type": "string", "description": "Comma separated origin names." }
                 ],
                 "description": "Clears storage for origin.",
                 "handlers": ["browser"]
             }
         ]
     }]
 }