[DevTools] Move v8-related instrumentation from agents to InspectorSession.

third_party/WebKit/Source/platform/v8_inspector/V8DebuggerAgentImpl.cpp

 // Copyright 2015 The Chromium 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 "platform/v8_inspector/V8DebuggerAgentImpl.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/inspector_protocol/Values.h"
 #include "platform/v8_inspector/InjectedScript.h"
 #include "platform/v8_inspector/InspectedContext.h"
@@ skipping 186 matching lines @@
     m_enabled = true;
     debugger().debuggerAgentEnabled();
 
     protocol::Vector<V8DebuggerParsedScript> compiledScripts;
     debugger().getCompiledScripts(m_session->contextGroupId(), compiledScripts);
     for (size_t i = 0; i < compiledScripts.size(); i++)
         didParseSource(compiledScripts[i]);
 
     // FIXME(WK44513): breakpoints activated flag should be synchronized between all front-ends
     debugger().setBreakpointsActivated(true);
+    m_session->changeInstrumentationCounter(+1);
 }
 
 bool V8DebuggerAgentImpl::enabled()
 {
     return m_enabled;
 }
 
 void V8DebuggerAgentImpl::enable(ErrorString*)
 {
     if (enabled())
         return;
 
     enable();
 
     ASSERT(m_frontend);
 }
 
 void V8DebuggerAgentImpl::disable(ErrorString*)
 {
     if (!enabled())
         return;
+    m_session->changeInstrumentationCounter(-1);
 
     m_state->setObject(DebuggerAgentState::javaScriptBreakpoints, protocol::DictionaryValue::create());
     m_state->setNumber(DebuggerAgentState::pauseOnExceptionsState, V8DebuggerImpl::DontPauseOnExceptions);
     m_state->setNumber(DebuggerAgentState::asyncCallStackDepth, 0);
 
     if (!m_pausedContext.IsEmpty())
         debugger().continueProgram();
     debugger().debuggerAgentDisabled();
     m_pausedContext.Reset();
     JavaScriptCallFrames emptyCallFrames;
@@ skipping 1209 matching lines @@
     if (!enabled())
         return;
     m_scheduledDebuggerStep = NoStep;
     m_scripts.clear();
     m_blackboxedPositions.clear();
     m_breakpointIdToDebuggerBreakpointIds.clear();
     allAsyncTasksCanceled();
 }
 
 } // namespace blink