[inspector] Expose GetPossibleBreakpoints for wasm

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

 // Copyright 2015 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.
 
 #include "src/inspector/v8-debugger-agent-impl.h"
 
 #include <algorithm>
 
 #include "src/debug/debug-interface.h"
 #include "src/inspector/injected-script.h"
@@ skipping 455 matching lines @@
   DCHECK(enabled());
   // FIXME: remove these checks once crbug.com/520702 is resolved.
   CHECK(!breakpointId.isEmpty());
   CHECK(!breakpoint.script_id.isEmpty());
   ScriptsMap::iterator scriptIterator = m_scripts.find(breakpoint.script_id);
   if (scriptIterator == m_scripts.end()) return nullptr;
   if (breakpoint.line_number < scriptIterator->second->startLine() ||
       scriptIterator->second->endLine() < breakpoint.line_number)
     return nullptr;
 
+  // Translate from protocol location to v8 location for the debugger.
   ScriptBreakpoint translatedBreakpoint = breakpoint;
   m_debugger->wasmTranslation()->TranslateProtocolLocationToWasmScriptLocation(
       &translatedBreakpoint.script_id, &translatedBreakpoint.line_number,
       &translatedBreakpoint.column_number);
 
   int actualLineNumber;
   int actualColumnNumber;
   String16 debuggerBreakpointId = m_debugger->setBreakpoint(
       translatedBreakpoint, &actualLineNumber, &actualColumnNumber);
   if (debuggerBreakpointId.isEmpty()) return nullptr;
 
+  // Translate back from v8 location to protocol location for the return value.
+  m_debugger->wasmTranslation()->TranslateWasmScriptLocationToProtocolLocation(
+      &translatedBreakpoint.script_id, &actualLineNumber, &actualColumnNumber);
+
   m_serverBreakpoints[debuggerBreakpointId] =
       std::make_pair(breakpointId, source);
   CHECK(!breakpointId.isEmpty());
 
   m_breakpointIdToDebuggerBreakpointIds[breakpointId].push_back(
       debuggerBreakpointId);
   return buildProtocolLocation(translatedBreakpoint.script_id, actualLineNumber,
                                actualColumnNumber);
 }
 
@@ skipping 684 matching lines @@
 void V8DebuggerAgentImpl::reset() {
   if (!enabled()) return;
   m_scheduledDebuggerStep = NoStep;
   m_blackboxedPositions.clear();
   resetBlackboxedStateCache();
   m_scripts.clear();
   m_breakpointIdToDebuggerBreakpointIds.clear();
 }
 
 }  // namespace v8_inspector