[inspector] added Debugger.getPossibleBreakpoints method

src/inspector/v8-debugger-agent-impl.h

Index: src/inspector/v8-debugger-agent-impl.h
diff --git a/src/inspector/v8-debugger-agent-impl.h b/src/inspector/v8-debugger-agent-impl.h
index c2f73c3002c5935c8fcaea70d24ca25945feb7d4..047ab4a9dad02275d8bdb2d7cd102b93ea7eca6e 100644
--- a/src/inspector/v8-debugger-agent-impl.h
+++ b/src/inspector/v8-debugger-agent-impl.h
@@ -65,6 +65,11 @@ class V8DebuggerAgentImpl : public protocol::Debugger::Backend {
       const Maybe<String16>& optionalCondition, String16*,
       std::unique_ptr<protocol::Debugger::Location>* actualLocation) override;
   void removeBreakpoint(ErrorString*, const String16& breakpointId) override;
+  void getPossibleBreakpoints(
+      ErrorString*, std::unique_ptr<protocol::Debugger::Location> start,
+      const Maybe<protocol::Debugger::Location>& end,
+      std::unique_ptr<protocol::Array<protocol::Debugger::Location>>* locations)
+      override;
   void continueToLocation(
       ErrorString*, std::unique_ptr<protocol::Debugger::Location>) override;
   void searchInContent(