Add a DevTools command to create an isolated world for a given frame

third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h

Index: third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h
diff --git a/third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h b/third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h
index a8cff87dc798b3ec1f43831f7f32448ffc6a5d39..368b72e88b7c48604cb5898cbc9e818cb415da09 100644
--- a/third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h
+++ b/third_party/WebKit/Source/platform/bindings/DOMWrapperWorld.h
@@ -59,6 +59,8 @@ class PLATFORM_EXPORT DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
     // Embedder isolated worlds can use IDs in [1, 1<<29).
     kEmbedderWorldIdLimit = (1 << 29),
     kDocumentXMLTreeViewerWorldId,
+    kDevToolsFirstIsolatedWorldId,
+    kDevToolsLastIsolatedWorldId = kDevToolsFirstIsolatedWorldId + 100,
     kIsolatedWorldIdLimit,
 
     // Other worlds can use IDs after this. Don't manually pick up an ID from
@@ -69,13 +71,15 @@ class PLATFORM_EXPORT DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
   enum class WorldType {
     kMain,
     kIsolated,
+    kInspectorIsolated,
     kGarbageCollector,
     kRegExp,
     kTesting,
     kWorker,
   };
 
-  // Creates a world other than IsolatedWorld.
+  // Creates a world other than IsolatedWorld. Note this can return nullptr if
+  // GenerateWorldIdForType fails to allocate a valid id.
   static PassRefPtr<DOMWrapperWorld> Create(v8::Isolate*, WorldType);
 
   // Ensures an IsolatedWorld for |worldId|.
@@ -128,7 +132,10 @@ class PLATFORM_EXPORT DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
 
   bool IsMainWorld() const { return world_type_ == WorldType::kMain; }
   bool IsWorkerWorld() const { return world_type_ == WorldType::kWorker; }
-  bool IsIsolatedWorld() const { return world_type_ == WorldType::kIsolated; }
+  bool IsIsolatedWorld() const {
+    return world_type_ == WorldType::kIsolated ||
+           world_type_ == WorldType::kInspectorIsolated;
+  }
 
   int GetWorldId() const { return world_id_; }
   DOMDataStore& DomDataStore() const { return *dom_data_store_; }
@@ -192,6 +199,11 @@ class PLATFORM_EXPORT DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
   // out of DOMWrapperWorld.
   static int GenerateWorldIdForType(WorldType);
 
+  // Returns an id in the range
+  // [kDevToolsFirstIsolatedWorldId, kDevToolsLastIsolatedWorldId] or
+  // kInvalidWorldId if that range has been exhausted.
+  static int GetNextInspectorIsolatedWorldId();

[pfeldman, 2017/05/09 18:57:36]

do you still need it?

[alex clarke (OOO till 29th), 2017/05/09 19:40:36]

It's gone.

+
   // Dissociates all wrappers in all worlds associated with |script_wrappable|.
   //
   // Do not use this function except for DOMWindow.  Only DOMWindow needs to