Re-land "Add stats to distinguish android renderer crashes."

components/crash/content/browser/crash_dump_manager_android.h

 // Copyright 2013 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 COMPONENTS_CRASH_CONTENT_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_
 #define COMPONENTS_CRASH_CONTENT_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_
 
 #include <map>
 
+#include "base/android/application_status_listener.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
+#include "base/process/kill.h"
 #include "base/process/process.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/browser_child_process_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "content/public/common/process_type.h"
 
 namespace content {
 class RenderProcessHost;
 }
 
 namespace breakpad {
 
 // This class manages the crash minidumps.
 // On Android, because of process isolation, each renderer process runs with a
 // different UID. As a result, we cannot generate the minidumps in the browser
@@ skipping 14 matching lines @@
 
   ~CrashDumpManager() override;
 
   // Returns a file that should be used to generate a minidump for the process
   // |child_process_id|.
   base::File CreateMinidumpFile(int child_process_id);
 
  private:
   typedef std::map<int, base::FilePath> ChildProcessIDToMinidumpPath;
 
+  // This enum is used to back a UMA histogram, and must be treated as
+  // append-only.
+  enum ExitStatus {
+    EMPTY_MINIDUMP_WHILE_RUNNING,
+    EMPTY_MINIDUMP_WHILE_PAUSED,
+    EMPTY_MINIDUMP_WHILE_BACKGROUND,
+    VALID_MINIDUMP_WHILE_RUNNING,
+    VALID_MINIDUMP_WHILE_PAUSED,
+    VALID_MINIDUMP_WHILE_BACKGROUND,
+    MINIDUMP_STATUS_COUNT
+  };
+
   static void ProcessMinidump(const base::FilePath& minidump_path,
-                              base::ProcessHandle pid);
+                              base::ProcessHandle pid,
+                              content::ProcessType process_type,
+                              base::TerminationStatus exit_status,
+                              base::android::ApplicationState app_state);
 
   // content::BrowserChildProcessObserver implementation:
   void BrowserChildProcessHostDisconnected(
       const content::ChildProcessData& data) override;
   void BrowserChildProcessCrashed(
       const content::ChildProcessData& data,
       int exit_code) override;
 
   // NotificationObserver implementation:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // Called on child process exit (including crash).
-  void OnChildExit(int child_process_id, base::ProcessHandle pid);
+  void OnChildExit(int child_process_id,
+                   base::ProcessHandle pid,
+                   content::ProcessType process_type,
+                   base::TerminationStatus exit_status,
+                   base::android::ApplicationState app_state);
 
   content::NotificationRegistrar notification_registrar_;
 
   // This map should only be accessed with its lock aquired as it is accessed
   // from the PROCESS_LAUNCHER and UI threads.
   base::Lock child_process_id_to_minidump_path_lock_;
   ChildProcessIDToMinidumpPath child_process_id_to_minidump_path_;
 
   base::FilePath crash_dump_dir_;
 
   static CrashDumpManager* instance_;
 
   DISALLOW_COPY_AND_ASSIGN(CrashDumpManager);
 };
 
 }  // namespace breakpad
 
 #endif  // COMPONENTS_CRASH_CONTENT_BROWSER_CRASH_DUMP_MANAGER_ANDROID_H_