[inspector] added Debugger.getPossibleBreakpoints method

src/debug/debug.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_DEBUG_DEBUG_H_
 #define V8_DEBUG_DEBUG_H_
 
 #include "src/allocation.h"
 #include "src/arguments.h"
 #include "src/assembler.h"
@@ skipping 443 matching lines @@
 
   // Stepping handling.
   void PrepareStep(StepAction step_action);
   void PrepareStepIn(Handle<JSFunction> function);
   void PrepareStepInSuspendedGenerator();
   void PrepareStepOnThrow();
   void ClearStepping();
   void ClearStepOut();
 
   bool PrepareFunctionForBreakPoints(Handle<SharedFunctionInfo> shared);
+  bool GetPossibleBreakpoints(Handle<Script> script, int start_position,
+                              int end_position, std::vector<int>& positions);
 
   void RecordAsyncFunction(Handle<JSGeneratorObject> generator_object);
 
   // Returns whether the operation succeeded. Compilation can only be triggered
   // if a valid closure is passed as the second argument, otherwise the shared
   // function needs to be compiled already.
   bool EnsureDebugInfo(Handle<SharedFunctionInfo> shared,
                        Handle<JSFunction> function);
   void CreateDebugInfo(Handle<SharedFunctionInfo> shared);
   static Handle<DebugInfo> GetDebugInfo(Handle<SharedFunctionInfo> shared);
@@ skipping 136 matching lines @@
                          bool auto_continue);
   void NotifyMessageHandler(v8::DebugEvent event,
                             Handle<JSObject> exec_state,
                             Handle<JSObject> event_data,
                             bool auto_continue);
   void InvokeMessageHandler(MessageImpl message);
 
   // Find the closest source position for a break point for a given position.
   int FindBreakablePosition(Handle<DebugInfo> debug_info, int source_position,
                             BreakPositionAlignment alignment);
+  bool FindBreakablePositions(Handle<DebugInfo> debug_info, int start_offset,
+                              int end_offset, BreakPositionAlignment alignment,
+                              std::vector<int>& offsets);
   // Instrument code to break at break points.
   void ApplyBreakPoints(Handle<DebugInfo> debug_info);
   // Clear code from instrumentation.
   void ClearBreakPoints(Handle<DebugInfo> debug_info);
   // Clear all code from instrumentation.
   void ClearAllBreakPoints();
   // Instrument a function with one-shots.
   void FloodWithOneShot(Handle<JSFunction> function,
                         BreakLocatorType type = ALL_BREAK_LOCATIONS);
   // Clear all one-shot instrumentations, but restore break points.
@@ skipping 194 matching lines @@
                                   Handle<Code> code);
   static bool DebugBreakSlotIsPatched(Address pc);
   static void ClearDebugBreakSlot(Isolate* isolate, Address pc);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_H_