Revert 223610 "Set the printer info in crash reports using the c..."

trunk/src/chrome/common/child_process_logging.h

 // 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.
 
 #ifndef CHROME_COMMON_CHILD_PROCESS_LOGGING_H_
 #define CHROME_COMMON_CHILD_PROCESS_LOGGING_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/debug/crash_logging.h"
 #include "base/strings/string16.h"
 
 class CommandLine;
 
 // The maximum number of variation chunks we will report.
 // Also used in chrome/app, but we define it here to avoid a common->app
 // dependency.
 static const size_t kMaxReportedVariationChunks = 15;
 
 // The maximum size of a variation chunk. This size was picked to be
 // consistent between platforms and the value was chosen from the Windows
 // limit of google_breakpad::CustomInfoEntry::kValueMaxLength.
 static const size_t kMaxVariationChunkSize = 64;
 
+// The maximum number of prn-info-* records.
+static const size_t kMaxReportedPrinterRecords = 4;
+
 // The maximum number of command line switches to include in the crash
 // report's metadata. Note that the mini-dump itself will also contain the
 // (original) command line arguments within the PEB.
 // Also used in chrome/app, but we define it here to avoid a common->app
 // dependency.
 static const size_t kMaxSwitches = 15;
 
 namespace child_process_logging {
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 // These are declared here so the crash reporter can access them directly in
 // compromised context without going through the standard library.
 extern char g_client_id[];
 extern char g_num_switches[];
 extern char g_num_variations[];
+extern char g_printer_info[];
 extern char g_switches[];
 extern char g_variation_chunks[];
 
 // Assume command line switches are less than 64 chars.
 static const size_t kSwitchLen = 64;
+
+// Assume printer info strings are less than 64 chars.
+static const size_t kPrinterInfoStrLen = 64;
 #endif
 
 // Sets the Client ID that is used as GUID if a Chrome process crashes.
 void SetClientId(const std::string& client_id);
 
 // Gets the Client ID to be used as GUID for crash reporting. Returns the client
 // id in |client_id| if it's known, an empty string otherwise.
 std::string GetClientId();
 
+// Sets the data on the printer to send along with crash reports. Data may be
+// separated by ';' up to kMaxReportedPrinterRecords strings. Each substring
+// would be cut to 63 chars.
+void SetPrinterInfo(const char* printer_info);
+
 // Sets the command line arguments to send along with crash reports to the
 // values in |command_line|.
 void SetCommandLine(const CommandLine* command_line);
 
 // Initialize the list of experiment info to send along with crash reports.
 void SetExperimentList(const std::vector<string16>& state);
 
+// Set/clear information about currently accessed printer.
+class ScopedPrinterInfoSetter {
+ public:
+  explicit ScopedPrinterInfoSetter(const std::string& printer_info) {
+    SetPrinterInfo(printer_info.c_str());
+  }
+
+  ~ScopedPrinterInfoSetter() {
+    SetPrinterInfo("");
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedPrinterInfoSetter);
+};
+
 }  // namespace child_process_logging
 
 #if defined(OS_WIN)
 namespace child_process_logging {
 
 // Sets up the base/debug/crash_logging.h mechanism.
 void Init();
 
 }  // namespace child_process_logging
 #endif  // defined(OS_WIN)
 
 #endif  // CHROME_COMMON_CHILD_PROCESS_LOGGING_H_