monitor console command implemented.

Source/core/inspector/InspectorDebuggerAgent.h

Index: Source/core/inspector/InspectorDebuggerAgent.h
diff --git a/Source/core/inspector/InspectorDebuggerAgent.h b/Source/core/inspector/InspectorDebuggerAgent.h
index 9b8bf3702bb2148442e035ec75ecbc31a58eda90..cc5664df83365c7739b38d9af6e13bf5836905a5 100644
--- a/Source/core/inspector/InspectorDebuggerAgent.h
+++ b/Source/core/inspector/InspectorDebuggerAgent.h
@@ -66,7 +66,8 @@ class InspectorDebuggerAgent : public InspectorBaseAgent<InspectorDebuggerAgent>
 public:
     enum BreakpointSource {
         UserBreakpointSource,
-        DebugCommandBreakpointSource
+        DebugCommandBreakpointSource,
+        MonitorCommandBreakpointSource
     };
 
     static const char* backtraceObjectGroup;
@@ -141,7 +142,7 @@ public:
 
     virtual void reportMemoryUsage(MemoryObjectInfo*) const;
 
-    void setBreakpoint(const String& scriptId, int lineNumber, int columnNumber, BreakpointSource);
+    void setBreakpoint(const String& scriptId, int lineNumber, int columnNumber, BreakpointSource, const String& condition = String());
     void removeBreakpoint(const String& scriptId, int lineNumber, int columnNumber, BreakpointSource);
 
 protected: