Added UMA stats for extensions events on addListener.

tools/json_schema_compiler/cpp_bundle_generator.py

Index: tools/json_schema_compiler/cpp_bundle_generator.py
diff --git a/tools/json_schema_compiler/cpp_bundle_generator.py b/tools/json_schema_compiler/cpp_bundle_generator.py
index e98f0c3023cbc619506dd8b56f1901be6b562a2f..5b188d6f3cdc5febba6849655bdcb0888f9a7589 100644
--- a/tools/json_schema_compiler/cpp_bundle_generator.py
+++ b/tools/json_schema_compiler/cpp_bundle_generator.py
@@ -6,6 +6,7 @@ import code
 import cpp_util
 from model import Platforms
 from schema_util import CapitalizeFirstLetter
+from schema_util import JsEventNameToHistogramValue
 from schema_util import JsFunctionNameToClassName
 
 import json
@@ -96,6 +97,26 @@ class CppBundleGenerator(object):
       c.Append("#endif  // %s" % function_ifdefs, indent_level=0)
     return c
 
+  def _GenerateEventHistogramMapAddAll(self):
+    c = code.Code()
+    c.Append('// static')
+    c.Append('void GeneratedEventHistogramMap::AddAll(std::map<std::string,')
+    c.Sblock('    extensions::events::HistogramValue>& map) {')
+    for namespace in self._model.namespaces.values():
+      for event in namespace.events.values():
+        if event.nocompile:
+          continue
+        event_name = "%s.%s" % (namespace.name, event.name)
+        histogram_value = event.histogram_name
+        if not histogram_value:
+          histogram_value = JsEventNameToHistogramValue(namespace.name,
+                                                      event.name)
+        c.Append('map.insert(std::make_pair("%s", extensions::events::%s));' %
+            (event_name, histogram_value))
+
+    c.Eblock("}")
+    return c
+
   def _GenerateFunctionRegistryRegisterAll(self):
     c = code.Code()
     c.Append('// static')
@@ -135,9 +156,15 @@ class _APIHGenerator(object):
   def Generate(self, namespace):
     c = code.Code()
 
+    c.Append('#include <map>')
     c.Append('#include <string>')
     c.Append()
     c.Append('#include "base/basictypes.h"')
+
+    c.Append('#include '
+        '"chrome/browser/extensions/extension_event_histogram_value.h"')
+    c.Append('#include '
+        '"chrome/browser/extensions/extension_function_registry.h"')
     c.Append()
     c.Append("class ExtensionFunctionRegistry;")
     c.Append()
@@ -149,6 +176,12 @@ class _APIHGenerator(object):
                  'ExtensionFunctionRegistry* registry);')
     c.Eblock('};');
     c.Append()
+    c.Append('class GeneratedEventHistogramMap {')
+    c.Sblock(' public:')
+    c.Append('static void AddAll(std::map<std::string,')
+    c.Append('    extensions::events::HistogramValue>& map);')
+    c.Eblock('};');
+    c.Append()
     c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
     return self._bundle._GenerateHeader('generated_api', c)
 
@@ -195,6 +228,8 @@ class _APICCGenerator(object):
     c.Append()
     c.Concat(self._bundle._GenerateFunctionRegistryRegisterAll())
     c.Append()
+    c.Concat(self._bundle._GenerateEventHistogramMapAddAll())
+    c.Append()
     c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
     c.Append()
     return c