Roll clang to 7185692.

Rebuild Clang to stop bundling libstdc++.so.

TBR=thakis@chromium.org

Change-Id: I3eaeedf253248d2a50d8df80d5844b76d2ca0141
Reviewed-on: https://pdfium-review.googlesource.com/9090
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 477ea9e..21cb056 100644
--- a/DEPS
+++ b/DEPS
@@ -8,7 +8,7 @@
   'build_revision': 'f671d3baeb64d9dba628ad582e867cf1aebc0207',
   'buildtools_revision': 'e6b510a9daf822bbe9f922c200c58150803d2fd8',
   'catapult_revision': '86352b966b0245d6883e5f7df27687856978b6d7',
-  'clang_revision': '2bf5912f904279eb13a228ce828af465aec852eb',
+  'clang_revision': '7185692a14ef62ca9686e9175549224663eaa29f',
   'cygwin_revision': 'c89e446b273697fadf3a10ff1007a97c0b7de6df',
   'freetype_revision': '38bdf22bfe68432aebdd33c198a0bd11b4ebb96f',
   'gen_library_loader_revision': '916d4acd8b2cde67a390737dfba90b3c37de23a1',