Revert r126898: "roll clang 151385:152598"
Revert r126898: "roll clang 151385:152598"

The new version of Clang has problems with Goma.  When the compile
goes via Goma it produces empty dependency files, which breaks
incremental builds because dependencies on header files are not
tracked correctly.

BUG=119119
TEST=trybots

Review URL: https://chromiumcodereview.appspot.com/9766009

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@127850 0039d316-1c4b-4281-b951-d872f2087c98

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