tp: Add support for ART Method v2 streaming trace format (#5236)

tp: Add support for ART Method v2 streaming trace format
    
Introducing the ArtMethodV2Tokenizer to parse the new ART 
Method Trace v2 format (identified by version 0x0004/0x0005).
  
The v2 format drastically differs from the legacy v1 format by
using a fully binary, delta-encoded structure to reduce CPU 
overhead and file size on Android devices.

Bug: 441438736

Author: sharanyasaha-eng

Android.bp

@@ -15335,6 +15335,7 @@ filegroup {
     srcs: [
         "src/trace_processor/importers/art_method/art_method_parser.cc",
         "src/trace_processor/importers/art_method/art_method_tokenizer.cc",
+        "src/trace_processor/importers/art_method/art_method_v2_tokenizer.cc",
     ],
 }
 

BUILD

@@ -2240,6 +2240,8 @@ perfetto_filegroup(
         "src/trace_processor/importers/art_method/art_method_parser.h",
         "src/trace_processor/importers/art_method/art_method_tokenizer.cc",
         "src/trace_processor/importers/art_method/art_method_tokenizer.h",
+        "src/trace_processor/importers/art_method/art_method_v2_tokenizer.cc",
+        "src/trace_processor/importers/art_method/art_method_v2_tokenizer.h",
     ],
 )
 

src/trace_processor/forwarding_trace_parser.cc

@@ -63,6 +63,7 @@ std::optional<TraceSorter::SortingMode> GetMinimumSortingMode(
     case kAndroidLogcatTraceType:
     case kArtHprofTraceType:
     case kArtMethodTraceType:
+    case kArtMethodV2TraceType:
     case kCollapsedStackTraceType:
     case kCtraceTraceType:
     case kFuchsiaTraceType:
@@ -157,7 +158,8 @@ base::Status ForwardingTraceParser::Init(const TraceBlobView& blob) {
              trace_type_ == kSimpleperfProtoTraceType ||
              trace_type_ == kPerfTextTraceType ||
              trace_type_ == kPerfDataTraceType ||
-             trace_type_ == kArtMethodTraceType) {
+             trace_type_ == kArtMethodTraceType ||
+             trace_type_ == kArtMethodV2TraceType) {
     trace_context_->clock_tracker->SetGlobalClock(
         ClockId::Machine(protos::pbzero::BUILTIN_CLOCK_MONOTONIC));
   } else if (trace_type_ == kFuchsiaTraceType) {

src/trace_processor/importers/art_method/BUILD.gn

@@ -28,6 +28,8 @@ source_set("art_method") {
     "art_method_parser.h",
     "art_method_tokenizer.cc",
     "art_method_tokenizer.h",
+    "art_method_v2_tokenizer.cc",
+    "art_method_v2_tokenizer.h",
   ]
   deps = [
     ":art_method_event",