WebCrypto: Add SHA-1 support to crypto.subtle.digest().

public/README

 Blink Public API
 ================
 
 This directory contains the public API for Blink. The API consists of a number
 of C++ header files, scripts, and GYP build files. We consider all other files
 in Blink to be implementation details, which are subject to change at any time
 without notice.
 
 The primary consumer of this API is Chromium's Content layer. If you are
 interested in using Blink, please consider interfacing with Blink via the
@@ skipping 21 matching lines @@
 Blink is designed to run in a sandbox and interacts with the operating system
 via the platform API. The central interface in this part of the API is
 Platform, which is a pure virtual interface from which Blink obtains many other
 interfaces.
 
 The public/web directory defines an interface to Blink's implementation of the
 web platform, including the Document Object Model (DOM). The central interface
 in this part of the API is WebView, which is a good starting point for
 exploring the API.
 
+Note that public/platform should not depend on public/web.
+
 The public/testing directory defines an interface for testing Blink. You can
 use this part of the API to load the TestRunner module used in Blink's test
 suite.
 
 Basic Types
 -----------
 
 The API does not use STL types, except for a small number of STL types that are
 used internally by Blink (e.g., std::pair). Instead, we use WTF containers to
 implement the API.
 
 The API uses some internal types (e.g., WebCore::Node). Typically, these types
 are forward declared and are opaque to consumers of the API. In other cases,
 the full definitions are available behind the WEBKIT_IMPLEMENTATION
 preprocessor macro. In both cases, we continue to regard these internal types
 as implementation details of Blink, and consumers of the API should not rely
 upon these types.
 
 Similarly, the API uses STL types outside of the WEBKIT_IMPLEMENTATION
 preprocessor macro, which is for the convenience of the consumer.
 
 Contact Information
 -------------------
 
 The public API also contains an OWNERS file, which lists a number of people who
 are knowledgeable about the API. If you have questions or comments about the
 API that might be of general interest to the Blink community at large, please
 consider directing your inquiry to blink-dev@chromium.org rather than to the
 OWNERS specifically.