Add crashpad_database_util and its man page

client/crash_report_database_mac.mm

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 555 matching lines @@
       contentsOfDirectoryAtPath:base::SysUTF8ToNSString(path.value())
                           error:&error];
   if (error) {
     LOG(ERROR) << "Failed to enumerate reports in directory " << path.value()
                << ": " << [[error description] UTF8String];
     return kFileSystemError;
   }
 
   reports->reserve([paths count]);
   for (NSString* entry in paths) {
-    base::FilePath report_path = path.Append([entry fileSystemRepresentation]);
-    base::ScopedFD lock(ObtainReportLock(report_path));
+    Report report;
+    report.file_path = path.Append([entry fileSystemRepresentation]);
+    base::ScopedFD lock(ObtainReportLock(report.file_path));
     if (!lock.is_valid())
       continue;
 
-    Report report;
-    if (!ReadReportMetadataLocked(report_path, &report)) {
+    if (!ReadReportMetadataLocked(report.file_path, &report)) {
       LOG(WARNING) << "Failed to read report metadata for "
-                   << report_path.value();
+                   << report.file_path.value();
       continue;
     }
     reports->push_back(report);
   }
 
   return kNoError;
 }
 
 // static
 std::string CrashReportDatabaseMac::XattrName(const base::StringPiece& name) {
   return base::StringPrintf("com.googlecode.crashpad.%s", name.data());
 }
 
 }  // namespace
 
 // static
 scoped_ptr<CrashReportDatabase> CrashReportDatabase::Initialize(
     const base::FilePath& path) {
   scoped_ptr<CrashReportDatabaseMac> database_mac(
       new CrashReportDatabaseMac(path));
   if (!database_mac->Initialize())
     database_mac.reset();
 
   return scoped_ptr<CrashReportDatabase>(database_mac.release());
 }
 
 }  // namespace crashpad