Add webdriver endpoint to send custom debugger commands

chrome/test/chromedriver/performance_logger.h

Index: chrome/test/chromedriver/performance_logger.h
diff --git a/chrome/test/chromedriver/performance_logger.h b/chrome/test/chromedriver/performance_logger.h
index 5bb58ae530423cef35c18b2393b68c41f4474a6c..c5dad205fa2e222ac24f8d40cd0c75a88a85e332 100644
--- a/chrome/test/chromedriver/performance_logger.h
+++ b/chrome/test/chromedriver/performance_logger.h
@@ -9,6 +9,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "chrome/test/chromedriver/base_logger.h"
 #include "chrome/test/chromedriver/capabilities.h"
 #include "chrome/test/chromedriver/chrome/devtools_event_listener.h"
 #include "chrome/test/chromedriver/command_listener.h"
@@ -27,7 +28,9 @@ struct Session;
 // Also translates buffered trace events into Log messages of info level with
 // the same structure if tracing categories are specified.
 
-class PerformanceLogger : public DevToolsEventListener, public CommandListener {
+class PerformanceLogger : public BaseLogger,
+                          public DevToolsEventListener,
+                          public CommandListener {
  public:
   // Creates a |PerformanceLogger| with default preferences that creates entries
   // in the given Log object. The log is owned elsewhere and must not be null.
@@ -54,15 +57,6 @@ class PerformanceLogger : public DevToolsEventListener, public CommandListener {
   Status BeforeCommand(const std::string& command_name) override;
 
  private:
-  void AddLogEntry(Log::Level level,
-                   const std::string& webview,
-                   const std::string& method,
-                   const base::DictionaryValue& params);
-
-  void AddLogEntry(const std::string& webview,
-                   const std::string& method,
-                   const base::DictionaryValue& params);
-
   // Enables Network, Page and Timeline domains according to |PerfLoggingPrefs|.
   Status EnableInspectorDomains(DevToolsClient* client);
 
@@ -81,7 +75,6 @@ class PerformanceLogger : public DevToolsEventListener, public CommandListener {
   Status CollectTraceEvents();  // Ditto.
   Status IsTraceDone(bool* trace_done) const; // True if trace is not buffering.
 
-  Log* log_;  // The log where to create entries.
   const Session* session_;
   PerfLoggingPrefs prefs_;
   DevToolsClient* browser_client_; // Pointer to browser-wide |DevToolsClient|.