[tracing] Introduce MemoryDumpArgs to enable light and heavy dumps

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 10fe534b14d5e7fe7eb7bf068ecbc291f8767bf6..5b26003a69f9257db3db5654a2b6686c5753112b 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -1968,7 +1968,9 @@ class GrContext* ResourceProvider::GrContext(bool worker_context) const {
   return context_provider ? context_provider->GrContext() : NULL;
 }
 
-bool ResourceProvider::OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd) {
+bool ResourceProvider::OnMemoryDump(
+    const base::trace_event::MemoryDumpArgs& args,
+    base::trace_event::ProcessMemoryDump* pmd) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   const uint64 tracing_process_id =