[net] Convert bug triage documents to Markdown.

net/docs/bug-triage-labels.md

+# Chrome Network Bug Triage : Labels
+
+## Some network label caveats
+
+* **Cr-UI-Browser-Downloads**:  Despite the name, this covers all issues
+  related to downloading a file except saving entire pages (Which is
+  **Cr-Blink-SavePage**), not just UI issues.  Most downloads bugs will have
+  the word "download" or "save as" in the description. Issues with the HTTP
+  server for the Chrome binaries are not downloads bugs.
+
+* **Cr-UI-Browser-SafeBrowsing**:  Bugs that have to do with the process by
+  which a URL or file is determined to be dangerous based on our databases, or
+  the resulting interstitials. Determination of danger based purely on
+  content-type or file extension belongs in **Cr-UI-Browser-Downloads**, not
+  SafeBrowsing.
+
+* **Cr-Internals-Network-SSL**:  This includes issues that should be also
+  tagged as **Cr-Security-UX** (certificate error pages or other security
+  interstitials, omnibox indicators that a page is secure), and more general
+  SSL issues.  If you see requests that die in the SSL negotiation phase, in
+  particular, this is often the correct label.
+
+* **Cr-Internals-Network-DataProxy**:  Flywheel / the Data Reduction Proxy.
+  Issues require "Reduce Data Usage" be turned on.  Proxy url is
+  [https://proxy.googlezip.net:443], with [http://compress.googlezip.net:80] as
+  a fallback.  Currently Android and iOS only.
+
+* **Cr-Internals-Network-Cache**:  The cache is the layer that handles most
+  range request logic (Though range requests may also be issued by the PDF
+  plugin, XHRs, or other components).
+
+* **Cr-Internals-Network-SPDY**:  Covers HTTP2 as well.
+
+* **Cr-Internals-Network-HTTP**:  Typically not used.  Unclear what it covers,
+  and there's no specific HTTP owner.
+
+* **Cr-Internals-Network-Logging**:  Covers **about:net-internals**,
+  **about:net-export** as well as the what's sent to the NetLog.
+
+* **Cr-Internals-Network-Connectivity**:  Issues related to switching between
+  networks, ERR_NETWORK_CHANGED, Chrome thinking it's online when it's not /
+  navigator.onLine inaccuracies, etc.
+
+* **Cr-Internals-Network-Filters**:  Covers SDCH and gzip issues.
+  ERR_CONTENT_DECODING_FAILED indicates a problem at this layer, and bugs here
+  can also cause response body corruption.
+
+
+## Common non-network labels
+
+Bugs in these areas often receive the **Cr-Internals-Network** label, though
+they fall largely outside the purview of the network stack team:
+
+* **Cr-Blink-Forms**:  Issues submitting forms, forms having weird data, forms
+  sending the wrong method, etc.
+
+* **Cr-Blink-Loader**:  Cross origin issues are sometimes loader related.
+  Blink also has an in-memory cache, and when it's used, requests don't appear
+  in about:net-internals.  Requests for the same URL are also often merged
+  there as well.  This does *not* cover issues with content/browser/loader/
+  files.
+
+* **Cr-Blink-ServiceWorker**
+
+* **Cr-Blink-Storage-AppCache**
+
+* **Cr-Blink-WebSockets**
+
+* **Cr-Blink-XHR**:  Generic issues with sync/async XHR requests - missing
+  request or response headers, multiple headers, etc.  These will often run
+  into issues in certain corner cases (Cross origin / CORS, proxy, whatever).
+  Attach all labels that seem appropriate.
+
+* **Cr-Services-Sync**:  Sharing data/tabs/history/passwords/etc between
+  machines not working.
+
+* **Cr-Services-Chromoting**
+
+* **Cr-Platform-Extensions**:  Issues extensions loading / not loading /
+  hanging.
+
+* **Cr-Platform-Extensions-API**:  Issues with network related extension APIs
+  should have this label. chrome.webRequest is the big one, I believe, but
+  there are others.
+
+* **Cr-Internals-Plugins-Pepper[-SDK]**
+
+* **Cr-UI-Browser-Omnibox**:  Basically any issue with the omnibox.  URLs being
+  treated as search queries rather than navigations, dropdown results being
+  weird, not handling certain unicode characters, etc.  If the issue is new
+  TLDs not being recognized by the omnibox, that's due to Chrome's TLD list
+  being out of date, and not an omnibox issue.  Such TLD issues should be duped
+  against http://crbug.com/37436.
+
+* **Cr-Internals-Media-Network**:  Issues related to media.  These often run
+  into the 6 requests per hostname issue, and also have fun interactions with
+  the cache, particularly in the range request case.
+
+* **Cr-Internals-Plugins-PDF**:  Issues loading pdf files.  These are often
+  related to range requests, which also have some logic at the
+  Internals-Network-Cache layer.
+
+* **Cr-UI-Browser-Navigation**
+
+* **Cr-UI-Browser-History**:  Issues which only appear with forward/back
+  navigation.
+
+* **Cr-OS-Systems-Network** / **Cr-OS-Systems-Mobile** /
+  **Cr-OS-Systems-Bluetooth**: These should be used for issues with ChromeOS's
+  platform network code, and not net/ issues on ChromeOS.
+
+* **Cr-Blink-SecurityFeature**:  CORS / Cross origin issues.  Main frame
+  cross-origin navigation issues are often actually
+  **Cr-UI-Browser-Navigation** issues.
+
+* **Cr-Privacy**:  Privacy related bug (History, cookies discoverable by an
+  entity that shouldn't be able to do so, incognito state being saved in memory
+  or on disk beyond the lifetime of incognito tabs, etc).  Generally used in
+  conjunction with other labels.
+
+* **Type-Bug-Security**:  Security related bug (Allows for code execution from
+  remote site, allows crossing security boundaries, unchecked array bounds,
+  etc).