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      1 // Copyright (c) 2011 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 // This is the list of load flags and their values. For the enum values,
      6 // include the file "net/base/load_flags.h".
      7 //
      8 // Here we define the values using a macro LOAD_FLAG, so it can be
      9 // expanded differently in some places (for example, to automatically
     10 // map a load flag value to its symbolic name).
     11 
     12 LOAD_FLAG(NORMAL, 0)
     13 
     14 // This is "normal reload", meaning an if-none-match/if-modified-since query
     15 LOAD_FLAG(VALIDATE_CACHE, 1 << 0)
     16 
     17 // This is "shift-reload", meaning a "pragma: no-cache" end-to-end fetch
     18 LOAD_FLAG(BYPASS_CACHE, 1 << 1)
     19 
     20 // This is a back/forward style navigation where the cached content should
     21 // be preferred over any protocol specific cache validation.
     22 LOAD_FLAG(PREFERRING_CACHE, 1 << 2)
     23 
     24 // This is a navigation that will fail if it cannot serve the requested
     25 // resource from the cache (or some equivalent local store).
     26 LOAD_FLAG(ONLY_FROM_CACHE, 1 << 3)
     27 
     28 // This is a navigation that will not use the cache at all.  It does not
     29 // impact the HTTP request headers.
     30 LOAD_FLAG(DISABLE_CACHE, 1 << 4)
     31 
     32 // This is a navigation that will not be intercepted by any registered
     33 // URLRequest::Interceptors.
     34 LOAD_FLAG(DISABLE_INTERCEPT, 1 << 5)
     35 
     36 // If present, upload progress messages should be provided to initiator.
     37 LOAD_FLAG(ENABLE_UPLOAD_PROGRESS, 1 << 6)
     38 
     39 // If present, collect load timing for the request.
     40 LOAD_FLAG(ENABLE_LOAD_TIMING, 1 << 7)
     41 
     42 // If present, ignores certificate mismatches with the domain name.
     43 // (The default behavior is to trigger an OnSSLCertificateError callback.)
     44 LOAD_FLAG(IGNORE_CERT_COMMON_NAME_INVALID, 1 << 8)
     45 
     46 // If present, ignores certificate expiration dates
     47 // (The default behavior is to trigger an OnSSLCertificateError callback).
     48 LOAD_FLAG(IGNORE_CERT_DATE_INVALID, 1 << 9)
     49 
     50 // If present, trusts all certificate authorities
     51 // (The default behavior is to trigger an OnSSLCertificateError callback).
     52 LOAD_FLAG(IGNORE_CERT_AUTHORITY_INVALID, 1 << 10)
     53 
     54 // If present, ignores certificate revocation
     55 // (The default behavior is to trigger an OnSSLCertificateError callback).
     56 LOAD_FLAG(IGNORE_CERT_REVOCATION, 1 << 11)
     57 
     58 // If present, ignores wrong key usage of the certificate
     59 // (The default behavior is to trigger an OnSSLCertificateError callback).
     60 LOAD_FLAG(IGNORE_CERT_WRONG_USAGE, 1 << 12)
     61 
     62 // This load will not make any changes to cookies, including storing new
     63 // cookies or updating existing ones.
     64 LOAD_FLAG(DO_NOT_SAVE_COOKIES, 1 << 13)
     65 
     66 // Do not resolve proxies. This override is used when downloading PAC files
     67 // to avoid having a circular dependency.
     68 LOAD_FLAG(BYPASS_PROXY, 1 << 14)
     69 
     70 // Indicate this request is for a download, as opposed to viewing.
     71 LOAD_FLAG(IS_DOWNLOAD, 1 << 15)
     72 
     73 // Requires EV certificate verification.
     74 LOAD_FLAG(VERIFY_EV_CERT, 1 << 16)
     75 
     76 // This load will not send any cookies.
     77 LOAD_FLAG(DO_NOT_SEND_COOKIES, 1 << 17)
     78 
     79 // This load will not send authentication data (user name/password)
     80 // to the server (as opposed to the proxy).
     81 LOAD_FLAG(DO_NOT_SEND_AUTH_DATA, 1 << 18)
     82 
     83 // This should only be used for testing (set by HttpNetworkTransaction).
     84 LOAD_FLAG(IGNORE_ALL_CERT_ERRORS, 1 << 19)
     85 
     86 // Indicate that this is a top level frame, so that we don't assume it is a
     87 // subresource and speculatively pre-connect or pre-resolve when a referring
     88 // page is loaded.
     89 LOAD_FLAG(MAIN_FRAME, 1 << 20)
     90 
     91 // Indicate that this is a sub frame, and hence it might have subresources that
     92 // should be speculatively resolved, or even speculatively preconnected.
     93 LOAD_FLAG(SUB_FRAME, 1 << 21)
     94 
     95 // If present, intercept actual request/response headers from network stack
     96 // and report them to renderer. This includes cookies, so the flag is only
     97 // respected if renderer has CanReadRawCookies capability in the security
     98 // policy.
     99 LOAD_FLAG(REPORT_RAW_HEADERS, 1 << 22)
    100 
    101 // Indicates that this load was motivated by the rel=prefetch feature,
    102 // and is (in theory) not intended for the current frame.
    103 LOAD_FLAG(PREFETCH, 1 << 23)
    104 
    105 // Indicates that this load was requested by a page that is currently
    106 // prerendering.
    107 LOAD_FLAG(PRERENDER, 1 << 24)
    108 
    109 // Indicates that this is a load that ignores limits and should complete
    110 // immediately.
    111 LOAD_FLAG(IGNORE_LIMITS, 1 << 25)
    112 
    113 // Suppress login prompts for this request. Cached credentials or
    114 // default credentials may still be used for authentication.
    115 LOAD_FLAG(DO_NOT_PROMPT_FOR_LOGIN, 1 << 26)
    116