Make session available to handlers

Change-Id: I2a53835ae1beaf1128ab13af5a734fe83c15ab45
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2346670Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#799557}

content/browser/devtools/devtools_session.cc

@@ -127,6 +127,7 @@ void DevToolsSession::AddHandler(
     std::unique_ptr<protocol::DevToolsDomainHandler> handler) {
   DCHECK(agent_host_);
   handler->Wire(dispatcher_.get());
+  handler->SetSession(this);
   handlers_[handler->name()] = std::move(handler);
 }
 

content/browser/devtools/protocol/devtools_domain_handler.cc

@@ -26,5 +26,17 @@ Response DevToolsDomainHandler::Disable() {
   return Response::Success();
 }
 
+void DevToolsDomainHandler::SetSession(DevToolsSession* session) {
+  session_ = session;
+}
+
+const std::string& DevToolsDomainHandler::name() const {
+  return name_;
+}
+
+DevToolsSession* DevToolsDomainHandler::session() {
+  return session_;
+}
+
 }  // namespace protocol
 }  // namespace content

content/browser/devtools/protocol/devtools_domain_handler.h

@@ -6,10 +6,12 @@
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_DEVTOOLS_DOMAIN_HANDLER_H_
 
 #include "content/browser/devtools/protocol/forward.h"
+#include "content/browser/devtools/shared_worker_devtools_agent_host.h"
 
 namespace content {
 
 class RenderFrameHostImpl;
+class DevToolsSession;
 
 namespace protocol {
 
@@ -21,12 +23,17 @@ class DevToolsDomainHandler {
   virtual void SetRenderer(int process_host_id,
                            RenderFrameHostImpl* frame_host);
   virtual void Wire(UberDispatcher* dispatcher);
+  void SetSession(DevToolsSession* session);
   virtual Response Disable();
 
-  const std::string& name() const { return name_; }
+  const std::string& name() const;
+
+ protected:
+  DevToolsSession* session();
 
  private:
   std::string name_;
+  DevToolsSession* session_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsDomainHandler);
 };