Add Google Charts to Observatory and use it in allocation profiler

runtime/bin/vmservice/client/precommit.sh

 #!/bin/sh
 
 # A polymer application compiled with dart2js depends on
 # 4 js files:
 # 1) packages/shadow_dom/shadow_dom.debug.js
 # 2) packages/custom_element/custom-elements.debug.js
 # 3) packages/browser/interop.js
 # 4) index.html_bootstrap.dart.precompiled.js
 
 # This script rolls 1, 2, 3, and 4 into index.html_bootstrap.dart.js
 
 # Relative paths to four scripts.
 SHADOW_DOM="packages/shadow_dom/shadow_dom.debug.js"
 CUSTOM_ELEMENTS="packages/custom_element/custom-elements.debug.js"
 INTEROP="packages/browser/interop.js"
 OBSERVATORY="index.html_bootstrap.dart.precompiled.js"
 OBSERVATORY_DEVTOOLS="index_devtools.html_bootstrap.dart.precompiled.js"
 
 # Base directory
 BASE="out/web"
 DEPLOYED="deployed/web"
 
 INPUT="$BASE/$SHADOW_DOM"
 INPUT="$INPUT $BASE/$CUSTOM_ELEMENTS"
 INPUT="$INPUT $BASE/$INTEROP"
-INPUT="$INPUT $BASE/$OBSERVATORY"
 
-OUTPUT="$DEPLOYED/index.html_bootstrap.dart.js"
+INPUT_STANDALONE="$INPUT $BASE/$OBSERVATORY"
+OUTPUT_STANDALONE="$DEPLOYED/index.html_bootstrap.dart.js"
 
 # Rolling
-cat $INPUT > $OUTPUT
+cat $INPUT_STANDALONE > $OUTPUT_STANDALONE
 cp $BASE/index.html $DEPLOYED/index.html
 
 INPUT_DEVTOOLS="$INPUT $BASE/$OBSERVATORY_DEVTOOLS"
 OUTPUT_DEVTOOLS="$DEPLOYED/index_devtools.html_bootstrap.dart.js"
 
 cat $INPUT_DEVTOOLS > $OUTPUT_DEVTOOLS
 cp $BASE/index_devtools.html $DEPLOYED/index_devtools.html
+
+# Kill package <script> tags added by polymer compilation.
+# This kills harmless (but distracting) Chrome Developer Console spam
+# about missing scripts.
+perl -pi -e 's/<script src="packages.*"><\/script>//g' \
+    $DEPLOYED/index.html
+perl -pi -e 's/<script src="packages.*"><\/script>//g' \
+    $DEPLOYED/index_devtools.html
+
+# The polymer compilation step munges <img> src urls and adds a packages/
+# prefix to the url. Because of how we deploy we must undo this and remove
+# the prefix. Without this, images will show up as broken links.
+perl -pi -e 's/packages\/observatory\/src\/observatory_elements\///g' \
+    $DEPLOYED/index.html
+perl -pi -e 's/packages\/observatory\/src\/observatory_elements\///g' \
+    $DEPLOYED/index_devtools.html