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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/renderer/safe_browsing/phishing_term_feature_extractor.h" | 5 #include "chrome/renderer/safe_browsing/phishing_term_feature_extractor.h" |
6 | 6 |
7 #include <list> | 7 #include <list> |
8 #include <map> | 8 #include <map> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/i18n/case_conversion.h" | 12 #include "base/i18n/case_conversion.h" |
13 #include "base/logging.h" | 13 #include "base/logging.h" |
14 #include "base/message_loop.h" | 14 #include "base/message_loop.h" |
15 #include "base/metrics/histogram.h" | 15 #include "base/metrics/histogram.h" |
16 #include "base/strings/utf_string_conversions.h" | 16 #include "base/strings/utf_string_conversions.h" |
17 #include "base/time/time.h" | 17 #include "base/time/time.h" |
18 #include "chrome/renderer/safe_browsing/feature_extractor_clock.h" | 18 #include "chrome/renderer/safe_browsing/feature_extractor_clock.h" |
19 #include "chrome/renderer/safe_browsing/features.h" | 19 #include "chrome/renderer/safe_browsing/features.h" |
20 #include "chrome/renderer/safe_browsing/murmurhash3_util.h" | 20 #include "chrome/renderer/safe_browsing/murmurhash3_util.h" |
21 #include "crypto/sha2.h" | 21 #include "crypto/sha2.h" |
22 #include "third_party/icu/public/common/unicode/ubrk.h" | 22 #include "third_party/icu/source/common/unicode/ubrk.h" |
23 #include "ui/base/l10n/l10n_util.h" | 23 #include "ui/base/l10n/l10n_util.h" |
24 | 24 |
25 namespace safe_browsing { | 25 namespace safe_browsing { |
26 | 26 |
27 // This time should be short enough that it doesn't noticeably disrupt the | 27 // This time should be short enough that it doesn't noticeably disrupt the |
28 // user's interaction with the page. | 28 // user's interaction with the page. |
29 const int PhishingTermFeatureExtractor::kMaxTimePerChunkMs = 10; | 29 const int PhishingTermFeatureExtractor::kMaxTimePerChunkMs = 10; |
30 | 30 |
31 // Experimenting shows that we get a reasonable gain in performance by | 31 // Experimenting shows that we get a reasonable gain in performance by |
32 // increasing this up to around 10, but there's not much benefit in | 32 // increasing this up to around 10, but there's not much benefit in |
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301 | 301 |
302 void PhishingTermFeatureExtractor::Clear() { | 302 void PhishingTermFeatureExtractor::Clear() { |
303 page_text_ = NULL; | 303 page_text_ = NULL; |
304 features_ = NULL; | 304 features_ = NULL; |
305 done_callback_.Reset(); | 305 done_callback_.Reset(); |
306 state_.reset(NULL); | 306 state_.reset(NULL); |
307 negative_word_cache_.Clear(); | 307 negative_word_cache_.Clear(); |
308 } | 308 } |
309 | 309 |
310 } // namespace safe_browsing | 310 } // namespace safe_browsing |
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