Add references to jacoco/clang coverage docs in each other

Bug: 1340699 Change-Id: Ia74ceced02342bac564a9233fb0b8c065eb65b40 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3760793 Auto-Submit: Prakhar Asthana <pasthana@google.com> Reviewed-by: Zhaoyang Li <zhaoyangli@chromium.org> Reviewed-by: Benjamin Joyce <bjoyce@chromium.org> Commit-Queue: Benjamin Joyce <bjoyce@chromium.org> Cr-Commit-Position: refs/heads/main@{#1025347}
JAJAJAwe · Jul 18, 2022 · f41864b · f41864b
1 parent a45125c
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diff --git a/build/android/docs/coverage.md b/build/android/docs/coverage.md
@@ -1,7 +1,7 @@
 # Android code coverage instructions
 
 These are instructions for collecting code coverage data for android
-instrumentation and JUnit tests.
+instrumentation and JUnit tests. For Clang(C++) code coverage refer to [clang coverage].
 
 [TOC]
 
@@ -81,3 +81,5 @@ class files and runtime **.exec** files. Then we need to process them using the
    --sources-json-dir out/java_coverage/ \
    --include-substr-filter obj/clank
   ```
+
+[clang coverage]: https://chromium.googlesource.com/chromium/src/+/HEAD/docs/testing/code_coverage.md
diff --git a/docs/testing/code_coverage.md b/docs/testing/code_coverage.md
@@ -17,17 +17,13 @@ Table of contents:
 - [Contacts](#contacts)
 - [FAQ](#faq)
 
-Chromium uses source-based code coverage for clang-compiled languages such as
-C++. This [documentation] explains how to use Clang’s source-based coverage
-features in general.
 
-In this document, we first introduce the code coverage infrastructure that
+This document is divided into two parts. 
+- The first part introduces the code coverage infrastructure that
 continuously generates code coverage information for the whole codebase and for
 specific CLs in Gerrit. For the latter, refer to
 [code\_coverage\_in\_gerrit.md](code_coverage_in_gerrit.md).
-We then present a script that can be used to locally generate code coverage
-reports with one command, and finally we provide a description of the
-process of producing these reports.
+- The second part talks about how to generate code coverage locally for Clang-compiled languages like C++. Refer to [android code coverage instructions] for instructions for java code.
 
 ## Coverage Infrastructure
 
@@ -121,7 +117,8 @@ by CQ bot. Or see this
 [15-second video tutorial](https://www.youtube.com/watch?v=cxXlYcSgIPE).
 
 ## Local Coverage Script
-The [coverage script] automates the process described below and provides a
+This [documentation] explains how to use Clang’s source-based coverage
+features in general. The [coverage script] automates the process described below and provides a
 one-stop service to generate code coverage reports locally in just one command.
 
 This script is currently supported on Android, Linux, Mac, iOS and ChromeOS
@@ -356,3 +353,4 @@ Yes!
 [How do crashes affect code coverage?]: #how-do-crashes-affect-code-coverage
 [known issues]: https://bugs.chromium.org/p/chromium/issues/list?q=component:Infra%3ETest%3ECodeCoverage
 [tools link]: https://storage.googleapis.com/chromium-browser-clang-staging/
+[android code coverage instructions]: https://chromium.googlesource.com/chromium/src/+/HEAD/build/android/docs/coverage.md