Run the JSON Schema Compiler's bundle compilation on JSON files. Previously it

chrome/browser/performance_monitor/performance_monitor.gyp

Index: chrome/browser/performance_monitor/performance_monitor.gyp
diff --git a/chrome/browser/performance_monitor/performance_monitor.gyp b/chrome/browser/performance_monitor/performance_monitor.gyp
index 08fe90e2f1a53ff57e953858e545e7009c5e77b1..e3587f491e845a154ccfdf40e36df6e501b2d2d8 100644
--- a/chrome/browser/performance_monitor/performance_monitor.gyp
+++ b/chrome/browser/performance_monitor/performance_monitor.gyp
@@ -8,14 +8,14 @@
       'target_name': 'performance_monitor',
       'type': 'static_library',
       'sources': [
-        '<@(json_schema_files)',
+        '<@(schema_files)',
       ],
       'includes': [
         '../../../build/json_schema_compile.gypi',
       ],
       'variables': {
         'chromium_code': 1,
-        'json_schema_files': [
+        'schema_files': [
           'events.json',
         ],
         'cc_dir': 'chrome/browser/performance_monitor',