DevTools: allow storing devtools preferences on the browser side.

content/shell/browser/shell_devtools_frontend.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/shell/browser/shell_devtools_frontend.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 206 matching lines @@
     net::URLFetcher* fetcher =
         net::URLFetcher::Create(gurl, net::URLFetcher::GET, this);
     pending_requests_[fetcher] = request_id;
     fetcher->SetRequestContext(web_contents()->GetBrowserContext()->
         GetRequestContext());
     fetcher->SetExtraRequestHeaders(headers);
     fetcher->SaveResponseWithWriter(scoped_ptr<net::URLFetcherResponseWriter>(
         new ResponseWriter(weak_factory_.GetWeakPtr(), stream_id)));
     fetcher->Start();
     return;
+  } else if (method == "getPreferences") {
+    SendMessageAck(request_id, &preferences_);
+    return;
+  } else if (method == "setPreference") {
+    std::string name;
+    std::string value;
+    if (!params->GetString(0, &name) ||
+        !params->GetString(1, &value)) {
+      return;
+    }
+    preferences_.SetStringWithoutPathExpansion(name, value);
+  } else if (method == "removePreference") {
+    std::string name;
+    if (!params->GetString(0, &name))
+      return;
+    preferences_.RemoveWithoutPathExpansion(name, nullptr);
   } else {
     return;
   }
 
   if (request_id)
     SendMessageAck(request_id, nullptr);
 }
 
 void ShellDevToolsFrontend::HandleMessageFromDevToolsFrontendToBackend(
     const std::string& message) {
@@ skipping 76 matching lines @@
   CallClientFunction("DevToolsAPI.embedderMessageAck",
                      &id_value, arg, nullptr);
 }
 
 void ShellDevToolsFrontend::AgentHostClosed(
     DevToolsAgentHost* agent_host, bool replaced) {
   frontend_shell_->Close();
 }
 
 }  // namespace content