mojo leveldb: Get profile and leveldb connected to DOMStorageContext.

content/browser/browser_context.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/browser/browser_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <limits>
 #include <utility>
 
 #include "base/guid.h"
 #include "base/lazy_instance.h"
 #include "base/rand_util.h"
 #include "build/build_config.h"
 
 #if !defined(OS_IOS)
-#include "components/profile_service/profile_app.h"
+#include "components/profile_service/user_id_map.h"
 #include "content/browser/download/download_manager_impl.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/push_messaging/push_messaging_router.h"
 #include "content/browser/storage_partition_impl_map.h"
 #include "content/common/child_process_host_impl.h"
 #include "content/public/browser/blob_handle.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
@@ skipping 302 matching lines @@
     BrowserContext* browser_context,
     DownloadManager* download_manager) {
   SetDownloadManager(browser_context, download_manager);
 }
 
 void BrowserContext::Initialize(
     BrowserContext* browser_context,
     const base::FilePath& path) {
   // Generate a GUID for |browser_context| to use as the Mojo user id.
   std::string new_id = base::GenerateGUID();
   while (g_used_user_ids.Get().find(new_id) != g_used_user_ids.Get().end())

[michaeln, 2016/03/17 22:35:41]

just curious, is this really needed or would a CHECK() be sufficient?

[Elliot Glaysher, 2016/03/18 19:41:12]

It is extraordinarily improbable, but in case GenerateGUID() returns two same
128 bit numbers we shouldn't crash...

(Admittedly, this was much more probable when user ids were 31 bit numbers.)

     new_id = base::GenerateGUID();
 
   g_used_user_ids.Get().insert(new_id);
   g_context_to_user_id.Get().push_back(std::make_pair(browser_context, new_id));
 
-  profile::ProfileApp::AssociateMojoUserIDWithProfileDir(new_id, path);
+  profile::AssociateMojoUserIDWithProfileDir(new_id, path);

[michaeln, 2016/03/17 22:35:41]

can come later but... i think path is not-empty for incognito and reflects the
path of its main profile? if thats right, i'd vote to associate "" instead.

   browser_context->SetUserData(kMojoWasInitialized,
                                new base::SupportsUserData::Data);
 }
 
 const std::string& BrowserContext::GetMojoUserIdFor(
     BrowserContext* browser_context) {
   CHECK(browser_context->GetUserData(kMojoWasInitialized))
       << "Attempting to get the mojo user id for a BrowserContext that was "
       << "never Initialize()ed.";
 
@@ skipping 13 matching lines @@
       << "Attempting to destroy a BrowserContext that never called "
       << "Initialize()";
 
 #if !defined(OS_IOS)
   if (GetUserData(kDownloadManagerKeyName))
     GetDownloadManager(this)->Shutdown();
 #endif
 }
 
 }  // namespace content