[DevTools] Remove Browser domain, switch clients to Target.

content/browser/devtools/render_frame_devtools_agent_host.cc

Index: content/browser/devtools/render_frame_devtools_agent_host.cc
diff --git a/content/browser/devtools/render_frame_devtools_agent_host.cc b/content/browser/devtools/render_frame_devtools_agent_host.cc
index 23b76cfb3a9ceb907c83751cae0e8b2d8519fd88..56c95e57e0b0e2e5c7bc943549fb6a294154ab53 100644
--- a/content/browser/devtools/render_frame_devtools_agent_host.cc
+++ b/content/browser/devtools/render_frame_devtools_agent_host.cc
@@ -17,7 +17,6 @@
 #include "content/browser/devtools/devtools_manager.h"
 #include "content/browser/devtools/devtools_protocol_handler.h"
 #include "content/browser/devtools/page_navigation_throttle.h"
-#include "content/browser/devtools/protocol/browser_handler.h"
 #include "content/browser/devtools/protocol/dom_handler.h"
 #include "content/browser/devtools/protocol/emulation_handler.h"
 #include "content/browser/devtools/protocol/input_handler.h"
@@ -384,7 +383,6 @@ void RenderFrameDevToolsAgentHost::WebContentsCreated(
 RenderFrameDevToolsAgentHost::RenderFrameDevToolsAgentHost(
     RenderFrameHostImpl* host)
     : DevToolsAgentHostImpl(base::GenerateGUID()),
-      browser_handler_(new devtools::browser::BrowserHandler()),
       dom_handler_(new devtools::dom::DOMHandler()),
       input_handler_(new devtools::input::InputHandler()),
       inspector_handler_(new devtools::inspector::InspectorHandler()),
@@ -409,7 +407,6 @@ RenderFrameDevToolsAgentHost::RenderFrameDevToolsAgentHost(
       pending_handle_(nullptr),
       frame_tree_node_(host->frame_tree_node()) {
   DevToolsProtocolDispatcher* dispatcher = protocol_handler_->dispatcher();
-  dispatcher->SetBrowserHandler(browser_handler_.get());
   dispatcher->SetDOMHandler(dom_handler_.get());
   dispatcher->SetInputHandler(input_handler_.get());
   dispatcher->SetInspectorHandler(inspector_handler_.get());
@@ -549,7 +546,6 @@ void RenderFrameDevToolsAgentHost::OnClientDetached() {
 #if defined(OS_ANDROID)
   power_save_blocker_.reset();
 #endif
-  browser_handler_->Detached();
   if (emulation_handler_)
     emulation_handler_->Detached();
   if (page_handler_)