Make DevTools support for the embedded SharedWorker.

content/browser/shared_worker/shared_worker_instance.h

Index: content/browser/shared_worker/shared_worker_instance.h
diff --git a/content/browser/shared_worker/shared_worker_instance.h b/content/browser/shared_worker/shared_worker_instance.h
index 0d613167d462d6b524b3725bce33cc1c8745c572..9d4e303d120d6b416e7e79da1b00c49350bc550f 100644
--- a/content/browser/shared_worker/shared_worker_instance.h
+++ b/content/browser/shared_worker/shared_worker_instance.h
@@ -16,6 +16,8 @@
 namespace content {
 class ResourceContext;
 
+// SharedWorkerInstance is copyable value-type data type. It could be passed to
+// the UI thread and be used for comparison in SharedWorkerDevToolsManager.
 class CONTENT_EXPORT SharedWorkerInstance {
  public:
   SharedWorkerInstance(const GURL& url,
@@ -24,6 +26,7 @@ class CONTENT_EXPORT SharedWorkerInstance {
                        blink::WebContentSecurityPolicyType security_policy_type,
                        ResourceContext* resource_context,
                        const WorkerStoragePartition& partition);
+  SharedWorkerInstance(const SharedWorkerInstance& other);
   ~SharedWorkerInstance();
 
   // Checks if this SharedWorkerInstance matches the passed url/name params
@@ -37,6 +40,7 @@ class CONTENT_EXPORT SharedWorkerInstance {
       const base::string16& name,
       const WorkerStoragePartition& partition,
       ResourceContext* resource_context) const;
+  bool Matches(const SharedWorkerInstance& other) const;
 
   // Accessors.
   const GURL& url() const { return url_; }