Add download of the stable SDK from gcloud to the gclient hooks in DEPS.

tools/deps/dartium.deps/DEPS

 import gclient_utils
 import os
 
 path = gclient_utils.FindGclientRoot(os.getcwd())
 execfile(os.path.join(path, 'src', 'dart', 'tools', 'deps', 'dartium.deps', 'DEPS.chromium')) # Include proper Chromium DEPS.
 
 # Now we need to override some settings and add some new ones.
 
 vars.update({
   "chromium_url": "http://src.chromium.org/svn",
@@ skipping 211 matching lines @@
 hooks.append({
   # Peg the blink version number in LASTCHANGE.blink to be the upstream
   # webkit_revision number so that chrome remote devtools pulls assets from
   # the right place.
   "name": "lastchange",
   "pattern": ".",
   "action": ["python", "-c",
       "f=open('src/build/util/LASTCHANGE.blink','w'); f.write('LASTCHANGE=" +
       Var('webkit_revision') + "\\n')" ],
 })
 hooks.append({

[ricow1, 2015/09/02 06:12:03]

this should eventually go away right? do we track that?

   "name": "checked_in_dart_binaries",
   "pattern": ".",
   "action": [
     "download_from_google_storage",
     "--no_auth",
     "--no_resume",
     "--bucket",
     "dart-dependencies",
-    "-d",
-    "-r",
+    "--recursive",
+    "--directory",
     "src/dart/tools/testing/bin",
   ],
 })
+hooks.append({
+  "name": "checked_in_dart_sdks",
+  "pattern": ".",
+  "action": [
+    "download_from_google_storage",
+    "--no_auth",
+    "--no_resume",
+    "--bucket",
+    "dart-dependencies",
+    "--recursive",
+    "--auto_platform",
+    "--extract",
+    "--directory",
+    "src/dart/tools/sdks",
+  ],
+})