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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 #ifndef NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ | 5 #ifndef NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ |
6 #define NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ | 6 #define NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ |
7 | 7 |
8 #include "base/macros.h" | 8 #include "base/macros.h" |
9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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82 scoped_ptr<ProxyResolverV8Tracing>* resolver, | 82 scoped_ptr<ProxyResolverV8Tracing>* resolver, |
83 const CompletionCallback& callback, | 83 const CompletionCallback& callback, |
84 scoped_ptr<ProxyResolverFactory::Request>* request) = 0; | 84 scoped_ptr<ProxyResolverFactory::Request>* request) = 0; |
85 | 85 |
86 static scoped_ptr<ProxyResolverV8TracingFactory> Create(); | 86 static scoped_ptr<ProxyResolverV8TracingFactory> Create(); |
87 | 87 |
88 private: | 88 private: |
89 DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8TracingFactory); | 89 DISALLOW_COPY_AND_ASSIGN(ProxyResolverV8TracingFactory); |
90 }; | 90 }; |
91 | 91 |
| 92 // This enum is used by an UMA histogram, so the values shouldn't be reordered |
| 93 // or renumbered. |
| 94 // |
| 95 // TODO(eroman): Remove when done gathering data for crbug.com/593759 |
| 96 enum class PacResultForStrippedUrl { |
| 97 // Did NOT measure the impact of running FindProxyForURL() with a modified |
| 98 // URL path, because the original URL could not complete using the |
| 99 // non-blocking DNS mode. |
| 100 SKIPPED_FALLBACK_BLOCKING_DNS = 0, |
| 101 |
| 102 // The result of running FindProxyForURL() with a modified URL path appears |
| 103 // to be indistinguishable. (Although there may have been sideffects to the |
| 104 // script state that won't manifest until later invocations). |
| 105 SUCCESS = 1, |
| 106 |
| 107 // Calling FindProxyForURL() with a modified URL path returned the same proxy |
| 108 // list, but had measurable sideffects in calls to alert(). |
| 109 SUCCESS_DIFFERENT_ALERTS = 2, |
| 110 |
| 111 // Calling FindProxyForURL() with a modified URL path returned the same proxy |
| 112 // list, but invoked a different sequence of DNS resolutions. This would |
| 113 // require a rather unusual script to trigger. |
| 114 SUCCESS_DIFFERENT_NUM_DNS = 3, |
| 115 |
| 116 // Calling FindProxyForURL() with a modified URL path resulted in a different |
| 117 // set of DNS dependencies. |
| 118 FAIL_ABANDONED = 4, |
| 119 |
| 120 // Calling FindProxyForURL() with a modified URL path caused a different |
| 121 // execution flow. Whereas with the original URL it succeeded with |
| 122 // non-blocking DNS, this attempt requires fallback to blocking DNS (and was |
| 123 // not attempted). |
| 124 FAIL_FALLBACK_BLOCKING_DNS = 5, |
| 125 |
| 126 // Calling FindProxyForURL() with a modified URL path caused a script error. |
| 127 FAIL_ERROR = 6, |
| 128 |
| 129 // Calling FindProxyForURL() with a modified URL path returned a different |
| 130 // proxy list. |
| 131 FAIL_DIFFERENT_PROXY_LIST = 7, |
| 132 |
| 133 MAX_VALUE, |
| 134 }; |
| 135 |
| 136 // TODO(eroman): Remove when done gathering data for crbug.com/593759 |
| 137 // |
| 138 // This histogram name is exported only for the sake of unit-tests. |
| 139 extern NET_EXPORT_PRIVATE const char kHistogramPacResultForStrippedUrl[]; |
| 140 |
92 } // namespace net | 141 } // namespace net |
93 | 142 |
94 #endif // NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ | 143 #endif // NET_PROXY_PROXY_RESOLVER_V8_TRACING_H_ |
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