Make small sub-target of gin that can be used in browser without v8 dep

content/app/content_main_runner.cc

 // Copyright (c) 2012 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/public/app/content_main_runner.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ skipping 53 matching lines @@
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/public/utility/content_utility_client.h"
 #include "content/renderer/in_process_renderer_thread.h"
 #include "content/utility/in_process_utility_thread.h"
 #include "ipc/ipc_descriptors.h"
 #include "media/base/media.h"
 #include "ppapi/features/features.h"
 #include "ui/base/ui_base_paths.h"
 #include "ui/base/ui_base_switches.h"
 
-#ifdef V8_USE_EXTERNAL_STARTUP_DATA
+#if defined(V8_USE_EXTERNAL_STARTUP_DATA) && \
+    !defined(CHROME_MULTIPLE_DLL_BROWSER)
 #include "gin/v8_initializer.h"
 #endif
 
 #if defined(OS_WIN)
 #include <malloc.h>
 #include <cstring>
 
 #include "base/trace_event/trace_event_etw_export_win.h"
 #include "base/win/process_startup_helper.h"
 #include "sandbox/win/src/sandbox_types.h"
@@ skipping 640 matching lines @@
       gin::V8Initializer::LoadV8Snapshot();
     }
     if (v8_natives_fd != -1) {
       auto v8_natives_region = g_fds->GetRegion(kV8NativesDataDescriptor);
       gin::V8Initializer::LoadV8NativesFromFD(
           v8_natives_fd, v8_natives_region.offset, v8_natives_region.size);
     } else {
       gin::V8Initializer::LoadV8Natives();
     }
 #else
+#if !defined(CHROME_MULTIPLE_DLL_BROWSER)
     gin::V8Initializer::LoadV8Snapshot();
     gin::V8Initializer::LoadV8Natives();
+#endif  // !CHROME_MULTIPLE_DLL_BROWSER
 #endif  // OS_POSIX && !OS_MACOSX
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 
     if (delegate_)
       delegate_->PreSandboxStartup();
 
     if (!process_type.empty())
       CommonSubprocessInit(process_type);
 
 #if defined(OS_WIN)
@@ skipping 106 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content