[DevTools] Do not use "settings" query param.

content/shell/browser/layout_test/layout_test_devtools_frontend.cc

 // Copyright 2014 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/layout_test/layout_test_devtools_frontend.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/path_service.h"
@@ skipping 12 matching lines @@
 LayoutTestDevToolsFrontend* LayoutTestDevToolsFrontend::Show(
     WebContents* inspected_contents,
     const std::string& settings,
     const std::string& frontend_url) {
   Shell* shell = Shell::CreateNewWindow(inspected_contents->GetBrowserContext(),
                                         GURL(),
                                         NULL,
                                         gfx::Size());
   LayoutTestDevToolsFrontend* devtools_frontend =
       new LayoutTestDevToolsFrontend(shell, inspected_contents);
-
-  shell->LoadURL(GetDevToolsPathAsURL(settings, frontend_url));
-
+  devtools_frontend->SetPreferences(settings);
+  shell->LoadURL(GetDevToolsPathAsURL(frontend_url));
   return devtools_frontend;
 }
 
 // static.
 GURL LayoutTestDevToolsFrontend::GetDevToolsPathAsURL(
-    const std::string& settings,
     const std::string& frontend_url) {
   if (!frontend_url.empty())
     return GURL(frontend_url);
   base::FilePath dir_exe;
   if (!PathService::Get(base::DIR_EXE, &dir_exe)) {
     NOTREACHED();
     return GURL();
   }
 #if defined(OS_MACOSX)
   // On Mac, the executable is in
   // out/Release/Content Shell.app/Contents/MacOS/Content Shell.
   // We need to go up 3 directories to get to out/Release.
   dir_exe = dir_exe.AppendASCII("../../..");
 #endif
   base::FilePath dev_tools_path =
       dir_exe.AppendASCII("resources/inspector/inspector.html");
 
   GURL result = net::FilePathToFileURL(dev_tools_path);
   std::string url_string =
       base::StringPrintf("%s?experiments=true", result.spec().c_str());
 #if defined(DEBUG_DEVTOOLS)
   url_string += "&debugFrontend=true";
 #endif  // defined(DEBUG_DEVTOOLS)
-  if (!settings.empty())
-    url_string += "&settings=" + settings;
   return GURL(url_string);
 }
 
 void LayoutTestDevToolsFrontend::ReuseFrontend(const std::string& settings,
                                                const std::string frontend_url) {
   DisconnectFromTarget();
-  preferences()->Clear();
+  SetPreferences(settings);
   ready_for_test_ = false;
   pending_evaluations_.clear();
-  frontend_shell()->LoadURL(GetDevToolsPathAsURL(settings, frontend_url));
+  frontend_shell()->LoadURL(GetDevToolsPathAsURL(frontend_url));
 }
 
 void LayoutTestDevToolsFrontend::EvaluateInFrontend(
     int call_id,
     const std::string& script) {
   if (!ready_for_test_) {
     pending_evaluations_.push_back(std::make_pair(call_id, script));
     return;
   }
 
@@ skipping 45 matching lines @@
     base::TerminationStatus status) {
   BlinkTestController::Get()->DevToolsProcessCrashed();
 }
 
 void LayoutTestDevToolsFrontend::RenderFrameCreated(
     RenderFrameHost* render_frame_host) {
   BlinkTestController::Get()->HandleNewRenderFrameHost(render_frame_host);
 }
 
 }  // namespace content