DevTools: visualize dependencies using jquery.graphviz.svg

third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js

Index: third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js
diff --git a/third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js b/third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js
index 1448ef8be3698edb1ccaedd8290df8756742a513..d486e1e48a9cf57aa463a5fefd1ab277506b1244 100644
--- a/third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js
+++ b/third_party/WebKit/Source/devtools/scripts/visualize_deps/generate_dot.js
@@ -10,9 +10,12 @@ const path = require('path');
 const utils = require('../utils');
 
 const FRONTEND_PATH = path.resolve(__dirname, '..', '..', 'front_end');
-const OUT = path.resolve(__dirname, 'out', 'dependencies.dot');
+const OUT_DIR_PATH = path.resolve(__dirname, 'out');
+const OUT_FILE_PATH = path.resolve(OUT_DIR_PATH, 'dependencies.dot');
 
 function main() {
+  if (!utils.isDir(OUT_DIR_PATH))
+    fs.mkdirSync(OUT_DIR_PATH);
   const modules = new Set();
   const moduleToDependencyList = ['digraph dependencies {'];
   moduleToDependencyList.push('fixedsize = true;')
@@ -49,7 +52,7 @@ function main() {
   });
   moduleToDependencyList.push('}');
   const content = moduleToDependencyList.join('\n');
-  fs.writeFileSync(OUT, content);
+  fs.writeFileSync(OUT_FILE_PATH, content);
 }
 
 if (require.main === module)