Move gin and v8 portion of profiling to child from common

chrome/common/profiling.cc

 // Copyright (c) 2012 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 "chrome/common/profiling.h"
 
 #include "base/at_exit.h"
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/profiler.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/threading/thread.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/common/content_switches.h"
-#include "gin/public/debug.h"
-#include "v8/include/v8.h"
 
 namespace {
 
-base::debug::AddDynamicSymbol add_dynamic_symbol_func = NULL;
-base::debug::MoveDynamicSymbol move_dynamic_symbol_func = NULL;
-
-void JitCodeEventHandler(const v8::JitCodeEvent* event) {
-  DCHECK_NE(static_cast<base::debug::AddDynamicSymbol>(NULL),
-            add_dynamic_symbol_func);
-  DCHECK_NE(static_cast<base::debug::MoveDynamicSymbol>(NULL),
-            move_dynamic_symbol_func);
-
-  switch (event->type) {
-    case v8::JitCodeEvent::CODE_ADDED:
-      add_dynamic_symbol_func(event->code_start, event->code_len,
-                              event->name.str, event->name.len);
-      break;
-
-    case v8::JitCodeEvent::CODE_MOVED:
-      move_dynamic_symbol_func(event->code_start, event->new_code_start);
-      break;
-
-    default:
-      break;
-  }
-}
-
 std::string GetProfileName() {
   static const char kDefaultProfileName[] = "chrome-profile-{type}-{pid}";
   CR_DEFINE_STATIC_LOCAL(std::string, profile_name, ());
 
   if (profile_name.empty()) {
     const base::CommandLine& command_line =
         *base::CommandLine::ForCurrentProcess();
     if (command_line.HasSwitch(switches::kProfilingFile))
       profile_name = command_line.GetSwitchValueASCII(switches::kProfilingFile);
     else
@@ skipping 69 matching lines @@
 
 } // namespace
 
 // static
 void Profiling::ProcessStarted() {
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   std::string process_type =
       command_line.GetSwitchValueASCII(switches::kProcessType);
 
-  // Establish the V8 profiling hooks if we're an instrumented binary.
-  if (base::debug::IsBinaryInstrumented()) {
-    base::debug::ReturnAddressLocationResolver resolve_func =
-        base::debug::GetProfilerReturnAddrResolutionFunc();
-
-    if (resolve_func != NULL) {
-      v8::V8::SetReturnAddressLocationResolver(resolve_func);
-    }
-
-    // Set up the JIT code entry handler and the symbol callbacks if the
-    // profiler supplies them.
-    // TODO(siggi): Maybe add a switch or an environment variable to turn off
-    //     V8 profiling?
-    base::debug::DynamicFunctionEntryHook entry_hook_func =
-        base::debug::GetProfilerDynamicFunctionEntryHookFunc();
-    add_dynamic_symbol_func = base::debug::GetProfilerAddDynamicSymbolFunc();
-    move_dynamic_symbol_func = base::debug::GetProfilerMoveDynamicSymbolFunc();
-
-    if (entry_hook_func != NULL &&
-        add_dynamic_symbol_func != NULL &&
-        move_dynamic_symbol_func != NULL) {
-      gin::Debug::SetFunctionEntryHook(entry_hook_func);
-      gin::Debug::SetJitCodeEventHandler(&JitCodeEventHandler);
-    }
-  }
-
   if (command_line.HasSwitch(switches::kProfilingAtStart)) {
     std::string process_type_to_start =
         command_line.GetSwitchValueASCII(switches::kProfilingAtStart);
     if (process_type == process_type_to_start)
       Start();
   }
 }
 
 // static
 void Profiling::Start() {
@@ skipping 19 matching lines @@
   return base::debug::BeingProfiled();
 }
 
 // static
 void Profiling::Toggle() {
   if (BeingProfiled())
     Stop();
   else
     Start();
 }