Update tools from Chromium.

Change-Id: I3bf5fcb210c181c3f7131304e41027ba081e3c0e
Reviewed-on: https://boringssl-review.googlesource.com/16145
Reviewed-by: Steven Valdez <svaldez@google.com>
diff --git a/util/bot/DEPS b/util/bot/DEPS
index 55eeb86..3642da6 100644
--- a/util/bot/DEPS
+++ b/util/bot/DEPS
@@ -18,13 +18,13 @@
 
 deps = {
   'boringssl/util/bot/gyp':
-    Var('chromium_git') + '/external/gyp.git' + '@' + 'e7079f0e0e14108ab0dba58728ff219637458563',
+    Var('chromium_git') + '/external/gyp.git' + '@' + 'eb296f67da078ec01f5e3a9ea9cdc6d26d680161',
 }
 
 deps_os = {
   'android': {
     'boringssl/util/bot/android_tools':
-      Var('chromium_git') + '/android_tools.git' + '@' + 'b43a6a289a7588b1769814f04dd6c7d7176974cc',
+      Var('chromium_git') + '/android_tools.git' + '@' + 'cb6bc21107001e2f2eeee2707b482b2b755baf51',
   },
 }
 
diff --git a/util/bot/go/bootstrap.py b/util/bot/go/bootstrap.py
index bb64e25..3b82ab2 100755
--- a/util/bot/go/bootstrap.py
+++ b/util/bot/go/bootstrap.py
@@ -45,7 +45,7 @@
 EXE_SFX = '.exe' if sys.platform == 'win32' else ''
 
 # Pinned version of Go toolset to download.
-TOOLSET_VERSION = 'go1.8'
+TOOLSET_VERSION = 'go1.8.1'
 
 # Platform dependent portion of a download URL. See http://golang.org/dl/.
 TOOLSET_VARIANTS = {
diff --git a/util/bot/update_clang.py b/util/bot/update_clang.py
index 7e91113..d23abfc 100644
--- a/util/bot/update_clang.py
+++ b/util/bot/update_clang.py
@@ -22,7 +22,7 @@
 # CLANG_REVISION and CLANG_SUB_REVISION determine the build of clang
 # to use. These should be synced with tools/clang/scripts/update.py in
 # Chromium.
-CLANG_REVISION = "296320"
+CLANG_REVISION = "300839"
 CLANG_SUB_REVISION = "1"
 
 PACKAGE_VERSION = "%s-%s" % (CLANG_REVISION, CLANG_SUB_REVISION)