[tracing] Simplify MemoryDumpProvider interface

base/trace_event/java_heap_dump_provider_android.cc

 // 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 "base/trace_event/java_heap_dump_provider_android.h"
 
 #include "base/android/java_runtime.h"
 #include "base/trace_event/process_memory_dump.h"
 
 namespace base {
 namespace trace_event {
 
 namespace {
 
-const char kDumperFriendlyName[] = "JavaHeap";
 const char kDumperName[] = "java_heap";
 
 }  // namespace
 
 // static
 JavaHeapDumpProvider* JavaHeapDumpProvider::GetInstance() {
   return Singleton<JavaHeapDumpProvider,
                    LeakySingletonTraits<JavaHeapDumpProvider>>::get();
 }
 
 JavaHeapDumpProvider::JavaHeapDumpProvider() {
 }
 
 JavaHeapDumpProvider::~JavaHeapDumpProvider() {
 }
 
 // Called at trace dump point time. Creates a snapshot with the memory counters
 // for the current process.
-bool JavaHeapDumpProvider::DumpInto(ProcessMemoryDump* pmd) {
+bool JavaHeapDumpProvider::OnMemoryDump(ProcessMemoryDump* pmd) {
   MemoryAllocatorDump* dump =
       pmd->CreateAllocatorDump(kDumperName, MemoryAllocatorDump::kRootHeap);
 
   // These numbers come from java.lang.Runtime stats.
   long total_heap_size = 0;
   long free_heap_size = 0;
   android::JavaRuntime::GetMemoryUsage(&total_heap_size, &free_heap_size);
   dump->set_physical_size_in_bytes(total_heap_size);
   dump->set_allocated_objects_count(0);
   dump->set_allocated_objects_size_in_bytes(total_heap_size - free_heap_size);
   return true;
 }
 
-const char* JavaHeapDumpProvider::GetFriendlyName() const {
-  return kDumperFriendlyName;
-}
-
 }  // namespace trace_event
 }  // namespace base