Files required by a service now listed in manifest.

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>
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/allocator/allocator_check.h"
 #include "base/allocator/allocator_extension.h"
 #include "base/at_exit.h"
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/stack_trace.h"
 #include "base/feature_list.h"
+#include "base/file_descriptor_store.h"
 #include "base/files/file_path.h"
 #include "base/i18n/icu_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/path_service.h"
@@ skipping 15 matching lines @@
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/utility_process_host_impl.h"
 #include "content/common/set_process_title.h"
 #include "content/common/url_schemes.h"
 #include "content/gpu/in_process_gpu_thread.h"
 #include "content/public/app/content_main.h"
 #include "content/public/app/content_main_delegate.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
+#include "content/public/common/content_descriptor_keys.h"
 #include "content/public/common/content_paths.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "content/public/common/sandbox_init.h"
 #include "content/public/gpu/content_gpu_client.h"
 #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 "services/service_manager/public/cpp/shared_file_util.h"
 #include "ui/base/ui_base_paths.h"
 #include "ui/base/ui_base_switches.h"
 
 #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>
@@ skipping 100 matching lines @@
 base::LazyInstance<ContentGpuClient>
     g_empty_content_gpu_client = LAZY_INSTANCE_INITIALIZER;
 base::LazyInstance<ContentRendererClient>
     g_empty_content_renderer_client = LAZY_INSTANCE_INITIALIZER;
 base::LazyInstance<ContentUtilityClient>
     g_empty_content_utility_client = LAZY_INSTANCE_INITIALIZER;
 #endif  // !CHROME_MULTIPLE_DLL_BROWSER
 
 #if defined(V8_USE_EXTERNAL_STARTUP_DATA) && defined(OS_ANDROID)
 #if defined __LP64__
-#define kV8SnapshotDataDescriptor kV8SnapshotDataDescriptor64
+#define kV8SnapshotDataDescriptor kV8Snapshot64DataDescriptor
 #else
-#define kV8SnapshotDataDescriptor kV8SnapshotDataDescriptor32
+#define kV8SnapshotDataDescriptor kV8Snapshot32DataDescriptor
 #endif
 #endif
 
 #if defined(OS_POSIX)
 
 // Setup signal-handling state: resanitize most signals, ignore SIGPIPE.
 void SetupSignalHandlers() {
   // Sanitise our signal handling state. Signals that were ignored by our
   // parent will also be ignored by us. We also inherit our parent's sigmask.
   sigset_t empty_signal_set;
@@ skipping 44 matching lines @@
           switches::kDisableInProcessStackTraces)) {
     base::debug::EnableInProcessStackDumping();
   }
 #if defined(OS_WIN)
   base::RouteStdioToConsole(false);
   LoadLibraryA("dbghelp.dll");
 #endif
 #endif
 }
 
+void PopulateFDsFromCommandLine() {
+  const std::string& shared_file_param =
+      base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kSharedFiles);
+  if (shared_file_param.empty())
+    return;
+
+  std::map<int, std::string> shared_file_descriptors;
+  service_manager::ParseSharedFileSwitchValue(shared_file_param,
+                                              &shared_file_descriptors);
+  for (const auto& descriptor : shared_file_descriptors) {
+    base::FileDescriptorStore::GetInstance()->Set(descriptor.second,
+                                                  descriptor.first);
+  }
+}
+
 class ContentClientInitializer {
  public:
   static void Set(const std::string& process_type,
                   ContentMainDelegate* delegate) {
     ContentClient* content_client = GetContentClient();
 #if !defined(CHROME_MULTIPLE_DLL_CHILD)
     if (process_type.empty()) {
       if (delegate)
         content_client->browser_ = delegate->CreateContentBrowserClient();
       if (!content_client->browser_)
@@ skipping 270 matching lines @@
 
 #if defined(OS_MACOSX)
     // We need this pool for all the objects created before we get to the
     // event loop, but we don't want to leave them hanging around until the
     // app quits. Each "main" needs to flush this pool right before it goes into
     // its main event loop to get rid of the cruft.
     autorelease_pool_.reset(new base::mac::ScopedNSAutoreleasePool());
     InitializeMac();
 #endif
 
-    // On Android, the command line is initialized when library is loaded and
-    // we have already started our TRACE_EVENT0.
+    // On Android, the command line is initialized and the FDs set when the
+    // library is loaded and we have already started our TRACE_EVENT0.
 #if !defined(OS_ANDROID)
     // argc/argv are ignored on Windows and Android; see command_line.h for
     // details.
     int argc = 0;
     const char** argv = NULL;
 
 #if !defined(OS_WIN)
     argc = params.argc;
     argv = params.argv;
 #endif
 
     base::CommandLine::Init(argc, argv);
 
+    PopulateFDsFromCommandLine();
+
     base::EnableTerminationOnHeapCorruption();
 
     // TODO(yiyaoliu, vadimt): Remove this once crbug.com/453640 is fixed.
     // Enable profiler recording right after command line is initialized so that
     // browser startup can be instrumented.
     if (delegate_ && delegate_->ShouldEnableProfilerRecording())
       tracked_objects::ScopedTracker::Enable();
 
     SetProcessTitleFromCommandLine(argv);
 #endif  // !OS_ANDROID
@@ skipping 137 matching lines @@
       CHECK(base::i18n::InitializeICU());
     }
 #else
     CHECK(base::i18n::InitializeICU());
 #endif  // OS_ANDROID && (ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE)
 
     base::StatisticsRecorder::Initialize();
 
 #if defined(V8_USE_EXTERNAL_STARTUP_DATA)
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
-#if !defined(OS_ANDROID)
-    // kV8NativesDataDescriptor and kV8SnapshotDataDescriptor could be shared
-    // with child processes via file descriptors. On Android they are set in
-    // ChildProcessService::InternalInitChildProcess, otherwise set them here.
-    if (command_line.HasSwitch(switches::kV8NativesPassedByFD)) {
-      g_fds->Set(
-          kV8NativesDataDescriptor,
-          kV8NativesDataDescriptor + base::GlobalDescriptors::kBaseDescriptor);
-    }
-    if (command_line.HasSwitch(switches::kV8SnapshotPassedByFD)) {
-      g_fds->Set(
-          kV8SnapshotDataDescriptor,
-          kV8SnapshotDataDescriptor + base::GlobalDescriptors::kBaseDescriptor);
-    }
-#endif  // !OS_ANDROID
-    int v8_natives_fd = g_fds->MaybeGet(kV8NativesDataDescriptor);
-    int v8_snapshot_fd = g_fds->MaybeGet(kV8SnapshotDataDescriptor);
+    base::FileDescriptorStore* file_descriptor_store =
+        base::FileDescriptorStore::GetInstance();
+    int v8_snapshot_fd =
+        file_descriptor_store->MaybeGet(kV8SnapshotDataDescriptor);
     if (v8_snapshot_fd != -1) {
-      auto v8_snapshot_region = g_fds->GetRegion(kV8SnapshotDataDescriptor);
+      auto v8_snapshot_region =
+          file_descriptor_store->GetRegion(kV8SnapshotDataDescriptor);
       gin::V8Initializer::LoadV8SnapshotFromFD(
           v8_snapshot_fd, v8_snapshot_region.offset, v8_snapshot_region.size);
     } else {
       gin::V8Initializer::LoadV8Snapshot();
     }
+    int v8_natives_fd =
+        file_descriptor_store->MaybeGet(kV8NativesDataDescriptor);
     if (v8_natives_fd != -1) {
-      auto v8_natives_region = g_fds->GetRegion(kV8NativesDataDescriptor);
+      auto v8_natives_region =
+          file_descriptor_store->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
@@ skipping 116 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content