Integrate fallback crash handling in chrome

chrome/app/chrome_exe_main_win.cc

 // Copyright (c) 2011 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 <windows.h>
 #include <malloc.h>
 #include <shellscalingapi.h>
 #include <stddef.h>
 #include <tchar.h>
 
 #include <algorithm>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "base/win/registry.h"
 #include "base/win/windows_version.h"
 #include "chrome/app/main_dll_loader_win.h"
 #include "chrome/browser/policy/policy_path_parser.h"
 #include "chrome/browser/win/chrome_process_finder.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/install_static/install_details.h"
+#include "chrome/install_static/install_util.h"
 #include "chrome_elf/chrome_elf_main.h"
 #include "components/crash/content/app/crash_switches.h"
 #include "components/crash/content/app/crashpad.h"
+#include "components/crash/content/app/fallback_crash_handling_win.h"
 #include "components/crash/content/app/run_as_crashpad_handler_win.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/result_codes.h"
 
 namespace {
 
 // List of switches that it's safe to rendezvous early with. Fast start should
 // not be done if a command line contains a switch not in this set.
 // Note this is currently stored as a list of two because it's probably faster
 // to iterate over this small array than building a map for constant time
@@ skipping 144 matching lines @@
                                 without_compat_mode_tokens.c_str());
       }
 
       // Return if we changed anything so that we can restart.
       return tokens.size() != initial_size && result == ERROR_SUCCESS;
     }
   }
   return false;
 }
 
+int RunFallbackCrashHandler(const base::CommandLine& cmd_line) {
+  // Retrieve the product & version details we need to report the crash
+  // correctly.
+  wchar_t exe_file[MAX_PATH] = {};
+  CHECK(::GetModuleFileName(nullptr, exe_file, arraysize(exe_file)));
+
+  base::string16 product_name;
+  base::string16 version;
+  base::string16 channel_name;
+  base::string16 special_build;
+  install_static::GetExecutableVersionDetails(exe_file, &product_name, &version,
+                                              &special_build, &channel_name);
+
+  return crash_reporter::RunAsFallbackCrashHandler(
+      cmd_line, base::UTF16ToUTF8(product_name), base::UTF16ToUTF8(version),
+      base::UTF16ToUTF8(channel_name));
+}
+
 }  // namespace
 
 #if defined(SYZYASAN)
 // This is in chrome_elf.
 extern "C" void BlockUntilHandlerStartedImpl();
 #endif  // SYZYASAN
 
 #if !defined(WIN_CONSOLE_APP)
 int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prev, wchar_t*, int) {
 #else
@@ skipping 12 matching lines @@
       command_line->GetSwitchValueASCII(switches::kProcessType);
 
   // Confirm that an explicit prefetch profile is used for all process types
   // except for the browser process. Any new process type will have to assign
   // itself a prefetch id. See kPrefetchArgument* constants in
   // content_switches.cc for details.
   DCHECK(process_type.empty() ||
          HasValidWindowsPrefetchArgument(*command_line));
 
   if (process_type == crash_reporter::switches::kCrashpadHandler) {
+    crash_reporter::SetupFallbackCrashHandling(*command_line);
     return crash_reporter::RunAsCrashpadHandler(
         *base::CommandLine::ForCurrentProcess());
+  } else if (process_type == crash_reporter::switches::kFallbackCrashHandler) {
+    return RunFallbackCrashHandler(*command_line);
   }
 
   const base::TimeTicks exe_entry_point_ticks = base::TimeTicks::Now();
 
   // Signal Chrome Elf that Chrome has begun to start.
   SignalChromeElf();
 
 #if defined(SYZYASAN)
   if (process_type.empty()) {
     // This is a temporary workaround for a race during startup with the
@@ skipping 13 matching lines @@
   RemoveAppCompatFlagsEntry();
 
   // Load and launch the chrome dll. *Everything* happens inside.
   VLOG(1) << "About to load main DLL.";
   MainDllLoader* loader = MakeMainDllLoader();
   int rc = loader->Launch(instance, exe_entry_point_ticks);
   loader->RelaunchChromeBrowserWithNewCommandLineIfNeeded();
   delete loader;
   return rc;
 }