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This pulls in the following Native Client changes:

r13680: (bradnelson) Add back in android_tools, but in the right location.
r13682: (dyen) Added irt extension support for supplying the nacl_irt_memory interface.
r13683: (bradnelson) Disabling flaky test under asan.
r13684: (hans) service_runtime_x86_64.gyp: pass /nologo to ml64.exe
r13685: (mseaborn) Use uint32_t for untrusted pointer args: mmap() and munmap() syscalls
r13686: (jfb) LLVM 3.5 merge: add missing dependencies to PNaCl build
r13687: (dschuff) Build x86-32 IRT with PNaCl

R=mseaborn@chromium.org,bradnelson@chromium.org
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3910
TEST=browser_tests and nacl_integration

Review URL: https://codereview.chromium.org/537003002

Cr-Commit-Position: refs/heads/master@{#293301}