Remove dependency on allocator from 'content' targets

base/allocator/allocator_extension_thunks.h

 // 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.
 
 #ifndef BASE_ALLOCATOR_ALLOCATOR_EXTENSION_THUNKS_H_
 #define BASE_ALLOCATOR_ALLOCATOR_EXTENSION_THUNKS_H_
 
 #include <stddef.h> // for size_t
 
 namespace base {
 namespace allocator {
 namespace thunks {
 
 // WARNING: You probably don't want to use this file unless you are routing a
 // new allocator extension from a specific allocator implementation to base.
 // See allocator_extension.h to see the interface that base exports.
 
-typedef bool (*GetAllocatorWasteSizeFunction)(size_t* size);
-void SetGetAllocatorWasteSizeFunction(
-    GetAllocatorWasteSizeFunction get_allocator_waste_size_function);
-GetAllocatorWasteSizeFunction GetGetAllocatorWasteSizeFunction();
+// Pointers to all the allcator extension functions that are used in chrome.
+struct AllocatorExtensionFunctions {
+  typedef bool (*GetAllocatorWasteSize)(size_t* size);
+  typedef void (*GetStats)(char* buffer, int buffer_length);
+  typedef void (*ReleaseFreeMemory)();
+  typedef unsigned int (*GetBytesAllocatedOnCurrentThread)();
+  typedef bool (*GetNumericProperty)(const char* name, size_t* value);
 
-typedef void (*GetStatsFunction)(char* buffer, int buffer_length);
-void SetGetStatsFunction(GetStatsFunction get_stats_function);
-GetStatsFunction GetGetStatsFunction();
+  typedef int (*StackGenerator)(int skip_count, void** stack);
+  typedef void (*HeapProfilerStart)(StackGenerator callback);
+  typedef void (*HeapProfilerStop)();
+  typedef char* (*GetHeapProfile)();
+  typedef void (*HeapProfilerDump)(const char* reason);
+  typedef bool (*IsHeapProfilerRunning)();
 
-typedef void (*ReleaseFreeMemoryFunction)();
-void SetReleaseFreeMemoryFunction(
-    ReleaseFreeMemoryFunction release_free_memory_function);
-ReleaseFreeMemoryFunction GetReleaseFreeMemoryFunction();
+  GetAllocatorWasteSize get_allocator_waste_size;
+  GetStats get_stats;
+  ReleaseFreeMemory release_free_memory;
+  GetBytesAllocatedOnCurrentThread get_bytes_allocated_on_current_thread;
+  GetNumericProperty get_numeric_property;
 
-typedef bool (*GetNumericPropertyFunction)(const char* name, size_t* value);
-void SetGetNumericPropertyFunction(
-    GetNumericPropertyFunction get_numeric_property_function);
-GetNumericPropertyFunction GetGetNumericPropertyFunction();
+  HeapProfilerStart heap_profiler_start;
+  HeapProfilerStop heap_profiler_stop;
+  GetHeapProfile get_heap_profile;
+  HeapProfilerDump heap_profiler_dump;
+  IsHeapProfilerRunning is_heap_profiler_running;
+};
+
+void SetAllocatorExtensionFunctions(AllocatorExtensionFunctions functions);
+AllocatorExtensionFunctions GetAllocatorExtensionFunctions();
 
 }  // namespace thunks
 }  // namespace allocator
 }  // namespace base
 
 #endif  // BASE_ALLOCATOR_ALLOCATOR_EXTENSION_THUNKS_H_