Revert of DevTools: merge devtools target with devtools host, part 1

components/devtools_discovery/devtools_target_descriptor.h

Index: components/devtools_discovery/devtools_target_descriptor.h
diff --git a/components/devtools_discovery/devtools_target_descriptor.h b/components/devtools_discovery/devtools_target_descriptor.h
index 482c07859eced7847cbc0dd46e02653f6bf37472..d7446319910b1361959ca552d5e246fc4498306a 100644
--- a/components/devtools_discovery/devtools_target_descriptor.h
+++ b/components/devtools_discovery/devtools_target_descriptor.h
@@ -27,8 +27,41 @@
   using List = std::vector<DevToolsTargetDescriptor*>;
   virtual ~DevToolsTargetDescriptor() {}
 
+  // Returns the unique target id.
+  virtual std::string GetId() const = 0;
+
+  // Returns the id of the parent target, or empty string if no parent.
+  virtual std::string GetParentId() const = 0;
+
+  // Returns the target type.
+  virtual std::string GetType() const = 0;
+
+  // Returns the target title.
+  virtual std::string GetTitle() const = 0;
+
+  // Returns the target description.
+  virtual std::string GetDescription() const = 0;
+
+  // Returns the url associated with this target.
+  virtual GURL GetURL() const = 0;
+
+  // Returns the favicon url for this target.
+  virtual GURL GetFaviconURL() const = 0;
+
+  // Returns the time when the target was last active.
+  virtual base::TimeTicks GetLastActivityTime() const = 0;
+
+  // Returns true if the debugger is attached to the target.
+  virtual bool IsAttached() const = 0;
+
   // Returns the agent host for this target.
   virtual scoped_refptr<content::DevToolsAgentHost> GetAgentHost() const = 0;
+
+  // Activates the target. Returns false if the operation failed.
+  virtual bool Activate() const = 0;
+
+  // Closes the target. Returns false if the operation failed.
+  virtual bool Close() const = 0;
 };
 
 }  // namespace devtools_discovery