content/public/common/content_constants.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // A handful of resource-like constants related to the Content application.
   6
   7 #ifndef CONTENT_PUBLIC_COMMON_CONTENT_CONSTANTS_H_
   8 #define CONTENT_PUBLIC_COMMON_CONTENT_CONSTANTS_H_
   9
  10 #include <stddef.h>         // For size_t
  11
  12 #include "base/files/file_path.h"
  13 #include "content/common/content_export.h"
  14
  15 namespace content {
  16
  17 // The name of the directory under BrowserContext::GetPath where the AppCache is
  18 // put.
  19 CONTENT_EXPORT extern const base::FilePath::CharType kAppCacheDirname[];
  20 // The name of the directory under BrowserContext::GetPath where Pepper plugin
  21 // data is put.
  22 CONTENT_EXPORT extern const base::FilePath::CharType kPepperDataDirname[];
  23
  24 // The MIME type used for the browser plugin.
  25 CONTENT_EXPORT extern const char kBrowserPluginMimeType[];
  26
  27 CONTENT_EXPORT extern const char kFlashPluginName[];
  28 CONTENT_EXPORT extern const char kFlashPluginSwfMimeType[];
  29 CONTENT_EXPORT extern const char kFlashPluginSwfExtension[];
  30 CONTENT_EXPORT extern const char kFlashPluginSwfDescription[];
  31 CONTENT_EXPORT extern const char kFlashPluginSplMimeType[];
  32 CONTENT_EXPORT extern const char kFlashPluginSplExtension[];
  33 CONTENT_EXPORT extern const char kFlashPluginSplDescription[];
  34 CONTENT_EXPORT extern const char kSilverlightPluginMimeTypePrefix[];
  35
  36 CONTENT_EXPORT extern const size_t kMaxRendererProcessCount;
  37
  38 // The maximum number of session history entries per tab.
  39 extern const int kMaxSessionHistoryEntries;
  40
  41 // The maximum number of characters of the document's title that we're willing
  42 // to accept in the browser process.
  43 extern const size_t kMaxTitleChars;
  44
  45 CONTENT_EXPORT extern const size_t kMaxURLDisplayChars;
  46
  47 extern const char kStatsFilename[];
  48 extern const int kStatsMaxThreads;
  49 extern const int kStatsMaxCounters;
  50
  51 // Most sequence numbers are used by a renderer when responding to a browser
  52 // request for histogram data.  This reserved number is used when a renderer
  53 // sends an unprovoked update, such as after a page has been loaded.  Using
  54 // this reserved constant avoids any chance of confusion with a response having
  55 // a browser-supplied sequence number.
  56 CONTENT_EXPORT extern const int kHistogramSynchronizerReservedSequenceNumber;
  57
  58 // Shared constants for the flash hardware video decode field trial.
  59 CONTENT_EXPORT extern const char kFlashHwVideoDecodeFieldTrialName[];
  60 CONTENT_EXPORT extern const char kFlashHwVideoDecodeFieldTrialEnabledName[];
  61
  62 }  // namespace content
  63
  64 #endif  // CONTENT_PUBLIC_COMMON_CONTENT_CONSTANTS_H_