[tracing] Remove memory-infra plumbing classes for blink

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index c8f41688a6fb8017f9075e160af300c0d5673640..d9be27c97a7be5de837f1cbd58974b072347a689 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -51,8 +51,6 @@
 #include "content/child/push_messaging/push_provider.h"
 #include "content/child/thread_safe_sender.h"
 #include "content/child/web_discardable_memory_impl.h"
-#include "content/child/web_memory_dump_provider_adapter.h"
-#include "content/child/web_process_memory_dump_impl.h"
 #include "content/child/web_url_loader_impl.h"
 #include "content/child/web_url_request_util.h"
 #include "content/child/websocket_bridge.h"
@@ -65,7 +63,6 @@
 #include "third_party/WebKit/public/platform/WebConvertableToTraceFormat.h"
 #include "third_party/WebKit/public/platform/WebData.h"
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
-#include "third_party/WebKit/public/platform/WebMemoryDumpProvider.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebWaitableEvent.h"
@@ -703,40 +700,6 @@ void BlinkPlatformImpl::updateTraceEventDuration(
       category_group_enabled, name, traceEventHandle);
 }
 
-void BlinkPlatformImpl::registerMemoryDumpProvider(
-    blink::WebMemoryDumpProvider* wmdp) {
-  WebMemoryDumpProviderAdapter* wmdp_adapter =
-      new WebMemoryDumpProviderAdapter(wmdp);
-  bool did_insert =
-      memory_dump_providers_.add(wmdp, make_scoped_ptr(wmdp_adapter)).second;
-  if (!did_insert)
-    return;
-  wmdp_adapter->set_is_registered(true);
-  base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-      wmdp_adapter, base::ThreadTaskRunnerHandle::Get());
-}
-
-void BlinkPlatformImpl::unregisterMemoryDumpProvider(
-    blink::WebMemoryDumpProvider* wmdp) {
-  scoped_ptr<WebMemoryDumpProviderAdapter> wmdp_adapter =
-      memory_dump_providers_.take_and_erase(wmdp);
-  if (!wmdp_adapter)
-    return;
-  base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
-      wmdp_adapter.get());
-  wmdp_adapter->set_is_registered(false);
-}
-
-blink::WebProcessMemoryDump* BlinkPlatformImpl::createProcessMemoryDump() {
-  return new WebProcessMemoryDumpImpl();
-}
-
-blink::Platform::WebMemoryAllocatorDumpGuid
-BlinkPlatformImpl::createWebMemoryAllocatorDumpGuid(
-    const blink::WebString& guidStr) {
-  return base::trace_event::MemoryAllocatorDumpGuid(guidStr.utf8()).ToUint64();
-}
-
 namespace {
 
 WebData loadAudioSpatializationResource(const char* name) {