chore(travis): install dart before "npm install"

This simplifies a later commit which will allow us to bail out earlier.

Author: chirayuk

scripts/travis/install.sh

@@ -16,3 +16,31 @@ if [[ $BROWSERS =~ "dartium" ]]; then
   rm dartium.zip
   mv dartium-* chromium
 fi
+
+echo Fetch Dart channel: $CHANNEL
+
+DART_SDK_ZIP=dartsdk-linux-x64-release.zip
+
+# TODO(chirayu): Remove this once issue 1350 is fixed.
+SVN_REVISION=latest
+if [[ "$CHANNEL" == "dev" ]]; then
+  issue_1350_state=$(curl 'https://api.github.com/repos/angular/angular.dart/issues/1020' | python -c \
+                     'import sys, json; print(json.loads(sys.stdin.read())["state"])')
+  if [[ "$issue_1350_state" == "open" ]]; then
+    # Is there a newer dev SDK?
+    latest_version=$(curl 'https://storage.googleapis.com/dart-archive/channels/dev/release/latest/VERSION' | python -c \
+      'import sys, json; print(json.loads(sys.stdin.read())["version"])')
+    if [[ "$latest_version" == "1.6.0-dev.8.0" ]]; then
+      # Use prior working version (1.6.0-dev.7.0)
+      SVN_REVISION=38831
+    fi
+  fi
+fi
+
+URL=https://storage.googleapis.com/dart-archive/channels/$CHANNEL/release/$SVN_REVISION/sdk/$DART_SDK_ZIP
+echo $URL
+curl -L -O $URL
+
+echo Fetched new dart version $(unzip -p $DART_SDK_ZIP dart-sdk/version)
+rm -rf dart-sdk
+unzip $DART_SDK_ZIP > /dev/null

scripts/travis/setup.sh

@@ -2,35 +2,6 @@
 
 set -e -o pipefail
 
-
-echo Fetch Dart channel: $CHANNEL
-
-DART_SDK_ZIP=dartsdk-linux-x64-release.zip
-
-# TODO(chirayu): Remove this once issue 1350 is fixed.
-SVN_REVISION=latest
-if [[ "$CHANNEL" == "dev" ]]; then
-  issue_1350_state=$(curl 'https://api.github.com/repos/angular/angular.dart/issues/1020' | python -c \
-                     'import sys, json; print(json.loads(sys.stdin.read())["state"])')
-  if [[ "$issue_1350_state" == "open" ]]; then
-    # Is there a newer dev SDK?
-    latest_version=$(curl 'https://storage.googleapis.com/dart-archive/channels/dev/release/latest/VERSION' | python -c \
-      'import sys, json; print(json.loads(sys.stdin.read())["version"])')
-    if [[ "$latest_version" == "1.6.0-dev.8.0" ]]; then
-      # Use prior working version (1.6.0-dev.7.0)
-      SVN_REVISION=38831
-    fi
-  fi
-fi
-
-URL=https://storage.googleapis.com/dart-archive/channels/$CHANNEL/release/$SVN_REVISION/sdk/$DART_SDK_ZIP
-echo $URL
-curl -L -O $URL
-
-echo Fetched new dart version $(unzip -p $DART_SDK_ZIP dart-sdk/version)
-rm -rf dart-sdk
-unzip $DART_SDK_ZIP > /dev/null
-
 if [ "$USE_G3" = "YES" ]; then
   echo =============================================================================
   echo "Rebasing onto g3v1x branch"