[DevTools] Move Network domain overrides to NetworkHandler

content/browser/devtools/protocol/network_handler.cc

Index: content/browser/devtools/protocol/network_handler.cc
diff --git a/content/browser/devtools/protocol/network_handler.cc b/content/browser/devtools/protocol/network_handler.cc
index b47cb4919178099253cd5575a0e62cb8f1b5715e..e59645affd3d40103b2bc5f5add912a95a1b70e9 100644
--- a/content/browser/devtools/protocol/network_handler.cc
+++ b/content/browser/devtools/protocol/network_handler.cc
@@ -4,28 +4,38 @@
 
 #include "content/browser/devtools/protocol/network_handler.h"
 
+#include "content/public/browser/content_browser_client.h"
+#include "content/public/common/content_client.h"
+
 namespace content {
 namespace devtools {
 namespace network {
 
 typedef DevToolsProtocolClient::Response Response;
 
-NetworkHandler::NetworkHandler() {
+NetworkHandler::NetworkHandler() : host_(nullptr) {
 }
 
 NetworkHandler::~NetworkHandler() {
 }
 
+void NetworkHandler::SetRenderViewHost(RenderViewHost* host) {
+  host_ = host;
+}
+
 Response NetworkHandler::ClearBrowserCache() {
-  return Response::FallThrough();
+  GetContentClient()->browser()->ClearCache(host_);
+  return Response::OK();
 }
 
 Response NetworkHandler::ClearBrowserCookies() {
-  return Response::FallThrough();
+  GetContentClient()->browser()->ClearCookies(host_);
+  return Response::OK();
 }
 
 Response NetworkHandler::CanEmulateNetworkConditions(bool* result) {
-  return Response::FallThrough();
+  *result = false;
+  return Response::OK();
 }
 
 Response NetworkHandler::EmulateNetworkConditions(bool offline,