[sql] Fix CRLF in some SQLite source code.

Sometimes CRLF sneak into SQLite's code, and then causes patch errors
when landing in Chromium.  Add an import step for cleaning this up and
clean things up.

None of these files are in the Chromium build.  They just gum up the
works.

BUG=340757
TBR=michaeln@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/880533004

Cr-Commit-Position: refs/heads/master@{#314033}

third_party/sqlite/README.chromium

@@ -141,6 +141,12 @@ unzip sqlite-src-${VERSION}.zip
 rm sqlite-src-${VERSION}.zip
 # -f includes ignored files, of which there are a couple.
 git add -f sqlite-src-${VERSION}/
+# Sometimes DOS line endings sneak into the source code.  This command works on
+# OSX and Linux and fixes those files, but double-check the results before
+# committing:
+egrep --exclude="*.eps" --exclude="*.ico" --exclude="*.jpg" \
+      --exclude="*.gif" --exclude="*.tiff" -URl '\r' . | \
+    LANG=C xargs sed -i~ -e $'s/\r$//'
 git commit -m "Begin import of sqlite-src-${VERSION}" sqlite-src-${VERSION}
 rm -rf src
 cp -a sqlite-src-${VERSION} src