Add temporary CHECKs in ICU init to attempt to more closely locate crash

base/i18n/icu_util.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 "base/i18n/icu_util.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <string>
 
+#include "base/debug/alias.h"
 #include "base/files/file_path.h"
 #include "base/files/memory_mapped_file.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "third_party/icu/source/common/unicode/putil.h"
 #include "third_party/icu/source/common/unicode/udata.h"
 
 #if defined(OS_MACOSX)
@@ skipping 100 matching lines @@
 
   // Chrome doesn't normally shut down ICU, so the mapped data shouldn't ever
   // be released.
   CR_DEFINE_STATIC_LOCAL(base::MemoryMappedFile, mapped_file, ());
   if (!mapped_file.IsValid()) {
 #if !defined(OS_MACOSX)
     FilePath data_path;
 #if defined(OS_WIN)
     // The data file will be in the same directory as the current module.
     bool path_ok = PathService::Get(base::DIR_MODULE, &data_path);
+    wchar_t tmp_buffer[_MAX_PATH] = {0};
+    wcscpy_s(tmp_buffer, data_path.value().c_str());
+    base::debug::Alias(tmp_buffer);
+    CHECK(path_ok);  // TODO(scottmg): http://crbug.com/445616
 #elif defined(OS_ANDROID)
     bool path_ok = PathService::Get(base::DIR_ANDROID_APP_DATA, &data_path);
 #else
     // For now, expect the data file to be alongside the executable.
     // This is sufficient while we work on unit tests, but will eventually
     // likely live in a data directory.
     bool path_ok = PathService::Get(base::DIR_EXE, &data_path);
 #endif
     DCHECK(path_ok);
     data_path = data_path.AppendASCII(kIcuDataFileName);
+
+#if defined(OS_WIN)
+    // TODO(scottmg): http://crbug.com/445616
+    wchar_t tmp_buffer2[_MAX_PATH] = {0};
+    wcscpy_s(tmp_buffer2, data_path.value().c_str());
+    base::debug::Alias(tmp_buffer2);
+#endif
+
 #else
     // Assume it is in the framework bundle's Resources directory.
     base::ScopedCFTypeRef<CFStringRef> data_file_name(
         SysUTF8ToCFStringRef(kIcuDataFileName));
     FilePath data_path =
       base::mac::PathForFrameworkBundleResource(data_file_name);
     if (data_path.empty()) {
       LOG(ERROR) << kIcuDataFileName << " not found in bundle";
       return false;
     }
 #endif  // OS check
     if (!mapped_file.Initialize(data_path)) {
+#if defined(OS_WIN)
+      CHECK(false);  // TODO(scottmg): http://crbug.com/445616
+#endif
       LOG(ERROR) << "Couldn't mmap " << data_path.AsUTF8Unsafe();
       return false;
     }
   }
   UErrorCode err = U_ZERO_ERROR;
   udata_setCommonData(const_cast<uint8*>(mapped_file.data()), &err);
+#if defined(OS_WIN)
+  CHECK(err == U_ZERO_ERROR);  // TODO(scottmg): http://crbug.com/445616
+#endif
   return err == U_ZERO_ERROR;
 #endif
 }
 #endif
 
 void AllowMultipleInitializeCallsForTesting() {
 #if !defined(NDEBUG)
   g_check_called_once = false;
 #endif
 }
 
 }  // namespace i18n
 }  // namespace base