[Blimp] Adds blimp engine browser test framework and LoadUrl test.

blimp/engine/app/blimp_main.cc

 // Copyright 2015 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 "base/command_line.h"
 #include "blimp/engine/app/blimp_content_main_delegate.h"
+#include "blimp/engine/app/blimp_engine_config.h"
 #include "content/public/app/content_main.h"
 
-const char kEnableOverlayScrollbar[] = "--enable-overlay-scrollbar";
-const char kDisableCachedPictureRaster[] = "--disable-cached-picture-raster";
-const char kDisableGpu[] = "--disable-gpu";
-const char kDisableRemoteFonts[] = "--disable-remote-fonts";
-const char kUseRemoteCompositing[] = "--use-remote-compositing";
 
 int main(int argc, const char** argv) {
   base::CommandLine::Init(argc, argv);
-
-  // Set internal command line switches for Blimp engine.
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(kEnableOverlayScrollbar);
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(
-      kDisableCachedPictureRaster);
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(kDisableGpu);
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(kDisableRemoteFonts);
-  base::CommandLine::ForCurrentProcess()->AppendSwitch(kUseRemoteCompositing);
+  blimp::engine::SetCommandLineDefaults(base::CommandLine::ForCurrentProcess());
 
   blimp::engine::BlimpContentMainDelegate delegate;
   content::ContentMainParams params(&delegate);
   params.argc = argc;
   params.argv = argv;
   return content::ContentMain(params);
 }