Update paths for coverage script in documentation

Change-Id: I38ee7e59f4bf9587f43546460c87bb8539121472
Reviewed-on: https://pdfium-review.googlesource.com/12211
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/docs/code-coverage.md b/docs/code-coverage.md
index 3162b58..200a674 100644
--- a/docs/code-coverage.md
+++ b/docs/code-coverage.md
@@ -74,7 +74,7 @@
 ### Usage
 
 Generating code coverage information is done via the
-`tools/coverage/coverage_report.py` script. This script will build any binaries
+`testing/tools/coverage/coverage_report.py` script. This script will build any binaries
 that it needs, perform test runs, collect coverage data, and finally generate a
 nice HTML coverage report.
 
@@ -86,7 +86,7 @@
 run, so they are not included in the defaults.
 
 ```shell
-tools/coverage/coverage_report.py
+testing/tools/coverage/coverage_report.py
 ```
 
 If the current working directory is not the root of your PDFium checkout, then
@@ -98,9 +98,10 @@
 An example of all these flags being used:
 
 ```shell
-coverage_report.py --source-directory ~/pdfium/pdfium \
-                   --build-directory ~/pdfium/pdfium/out/Debug_with_Coverage \
-                   --output-directory ~/Documents/PDFium_coverage
+testing/tools/coverage/coverage_report.py \
+    --source-directory ~/pdfium/pdfium \
+    --build-directory ~/pdfium/pdfium/out/Debug_with_Coverage \
+    --output-directory ~/Documents/PDFium_coverage
 ```
 
 To run different tests then the default set, there are two ways to achieve
@@ -108,7 +109,7 @@
 long time, then you just need to add the `--slow` flag.
 
 ```shell
-tools/coverage/coverage_report.py --slow
+testing/tools/coverage/coverage_report.py --slow
 ```
 
 If you want more fine grained control, including running just a single test, you
@@ -119,7 +120,7 @@
 An example running the default tests explicitly:
 
 ```shell
-tools/coverage/coverage_report.py pdfium_unittests pdfium_embeddertests
+testing/tools/coverage/coverage_report.py pdfium_unittests pdfium_embeddertests
 ```
 
 NOTE: