Revert of Data structures for Safe Browsing subresource filtering rules.

components/subresource_filter/core/common/proto/rules.proto

Index: components/subresource_filter/core/common/proto/rules.proto
diff --git a/components/subresource_filter/core/common/proto/rules.proto b/components/subresource_filter/core/common/proto/rules.proto
deleted file mode 100644
index 66ac444b88f8a2eb813f53d3bed67196c65f0e77..0000000000000000000000000000000000000000
--- a/components/subresource_filter/core/common/proto/rules.proto
+++ /dev/null
@@ -1,196 +0,0 @@
-// Copyright 2016 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.
-
-syntax = "proto2";
-option optimize_for = LITE_RUNTIME;
-
-package subresource_filter.proto;
-option java_package = "org.chromium.components.subresource_filter.proto";
-
-// The type of a subresource filtering rule.
-enum RuleType {
-  RULE_TYPE_UNSPECIFIED = 0;
-
-  RULE_TYPE_COMMENT = 1;  // Comment rule.
-  RULE_TYPE_URL = 2;      // Network level filtering rule based on URL pattern.
-  RULE_TYPE_CSS = 3;      // Element hiding rule based on a CSS selector.
-};
-
-// The format of a URL pattern.
-enum UrlPatternType {
-  URL_PATTERN_TYPE_UNSPECIFIED = 0;
-
-  // A pattern without special characters, e.g. "example.com".
-  URL_PATTERN_TYPE_SUBSTRING = 1;
-
-  // The pattern contains one or more wildcards, namely '*' and/or '^'
-  // characters. The '*' matches any sequence of characters, while the '^'
-  // matches a separator, i.e. anything but a letter, a digit, or one of [-._%].
-  URL_PATTERN_TYPE_WILDCARDED = 2;
-
-  // The pattern is a regular expression.
-  URL_PATTERN_TYPE_REGEXP = 3;
-};
-
-// Types of anchors that can be used to constrain where a URL pattern must
-// begin/end in the URL in order to be considered a match.
-enum AnchorType {
-  ANCHOR_TYPE_UNSPECIFIED = 0;
-
-  // Acts like a '*' wildcard at the respective end of a pattern.
-  ANCHOR_TYPE_NONE = 1;
-  // The pattern must match from the start/until the end of the URL.
-  ANCHOR_TYPE_BOUNDARY = 2;
-  // The pattern must match starting with the TLD+n of the URL's domain, but the
-  // scheme and subdomains (if any) can be arbitrary.
-  ANCHOR_TYPE_SUBDOMAIN = 3;
-};
-
-// The types of subresource requests that a URL rule should be applied to.
-// Note: Values are used as flags in a bitmask.
-enum ElementType {
-  option allow_alias = true;
-  ELEMENT_TYPE_UNSPECIFIED = 0;
-
-  ELEMENT_TYPE_OTHER = 1;
-  ELEMENT_TYPE_SCRIPT = 2;
-  ELEMENT_TYPE_IMAGE = 4;
-  ELEMENT_TYPE_STYLESHEET = 8;
-  ELEMENT_TYPE_OBJECT = 16;
-  ELEMENT_TYPE_XMLHTTPREQUEST = 32;
-  ELEMENT_TYPE_OBJECT_SUBREQUEST = 64;
-  ELEMENT_TYPE_SUBDOCUMENT = 128;
-  ELEMENT_TYPE_PING = 256;
-  ELEMENT_TYPE_MEDIA = 512;
-  ELEMENT_TYPE_FONT = 1024;
-  ELEMENT_TYPE_POPUP = 2048;
-
-  // NOTE: Keep these two values consistent with the values above.
-  ELEMENT_TYPE_MAX = 2048;
-  ELEMENT_TYPE_ALL = 4095;
-};
-
-// The options controlling whether or not to activate filtering for subresources
-// of documents that match the URL pattern of the rule.
-// Note: Values are used as flags in a bitmask.
-enum ActivationType {
-  option allow_alias = true;
-  ACTIVATION_TYPE_UNSPECIFIED = 0;
-
-  ACTIVATION_TYPE_DOCUMENT = 1;      // Disable all rules on the page.
-  ACTIVATION_TYPE_ELEMHIDE = 2;      // Disable CSS rules on the page.
-  ACTIVATION_TYPE_GENERICHIDE = 4;   // Disable generic CSS rules on the page.
-  ACTIVATION_TYPE_GENERICBLOCK = 8;  // Disable generic URL rules on the page.
-
-  // NOTE: Keep these two values consistent with the values above.
-  ACTIVATION_TYPE_MAX = 8;
-  ACTIVATION_TYPE_ALL = 15;
-};
-
-// The semantics of a rule. Defines how the rule relates to other rules and how
-// it influences the filtering decision.
-enum RuleSemantics {
-  RULE_SEMANTICS_UNSPECIFIED = 0;
-
-  // Matching subresource requests should be aborted, matching elements should
-  // be hidden.
-  RULE_SEMANTICS_BLACKLIST = 1;
-  // If the rule matches, it suppresses any matching RULE_SEMANTICS_BLACKLIST
-  // rule.
-  RULE_SEMANTICS_WHITELIST = 2;
-}
-
-// The type of relation between the source of the requested subresource and that
-// of the document.
-enum SourceType {
-  SOURCE_TYPE_UNSPECIFIED = 0;
-
-  SOURCE_TYPE_ANY = 1;          // Doesn't matter.
-  SOURCE_TYPE_THIRD_PARTY = 2;  // Requesting a trird-party resource.
-  SOURCE_TYPE_FIRST_PARTY = 3;  // Requesting a first-party resource.
-}
-
-// An item of the domain list.
-message DomainListItem {
-  // The UTF-8 representation of the domain, e.g. "subdomain.example.com".
-  optional string domain = 1;
-
-  // Defines whether the domain is excluded from the set of domains.
-  optional bool exclude = 2;
-}
-
-// A network level filtering rule based on a URL pattern. Corresponds to
-// RULE_TYPE_URL.
-message UrlRule {
-  // The semantics of the rule.
-  optional RuleSemantics semantics = 1;
-
-  // Restricts application of the rule to first-party/third-party requests.
-  optional SourceType source_type = 2;
-
-  // Stores the ElementTypes that the rule applies to as a bitwise OR of the
-  // corresponding ElementType values.
-  optional int32 element_types = 3;
-
-  // Stores the ActivationTypes associated with the rule as a bitwise OR of the
-  // corresponding ActivationType values.
-  optional int32 activation_types = 4;
-
-  // The list of domains to be included/excluded from the filter's affected set.
-
-  // The rule applies only to subresources of documents loaded from included
-  // domains (or subdomains thereof). If the list is empty, the rule is applied
-  // on documents from all domains.
-  // If |domains| is empty or has exceptions only, the rule is called generic.
-  // Otherwise is it called domain specific, i.e. applies to a limited number of
-  // domains.
-  repeated DomainListItem domains = 5;
-
-  // The format of |url_pattern|.
-  optional UrlPatternType url_pattern_type = 6;
-
-  // Defines where the URL pattern must start in the URL in order to be
-  // considered a match. Never used with REGEXP patterns.
-  optional AnchorType anchor_left = 7;
-
-  // Defines where the URL pattern must end in the URL in order to be
-  // considered a match. Never used with REGEXP patterns. Never equals to
-  // ANCHOR_TYPE_SUBDOMAIN.
-  optional AnchorType anchor_right = 8;
-
-  // When set, the rule applies only to URLs that match |url_pattern| in a
-  // case-sensitive way.
-  optional bool match_case = 9;
-
-  // The URL pattern of the format prescribed by |url_pattern_type|.
-  optional string url_pattern = 10;
-}
-
-// Element hiding rule based on a CSS selector. Corresponds to RULE_TYPE_CSS.
-message CssRule {
-  // The semantics of the rule.
-  optional RuleSemantics semantics = 1;
-
-  // The list of domains, same as UrlRule::domains.
-  repeated DomainListItem domains = 2;
-
-  // A CSS selector as specified in http://www.w3.org/TR/css3-selectors.
-  optional string css_selector = 3;
-}
-
-// A comment line.
-message Comment {
-  // Comment text.
-  optional string text = 1;
-
-  // For special key-value comments, if any.
-  optional string key = 2;
-  optional string value = 3;
-}
-
-// A container for lists of non-comment rules collated by RuleType.
-message FilteringRules {
-  repeated UrlRule url_rules = 1;
-  repeated CssRule css_rules = 2;
-}