Implement the getRequestDetails api in chrome side.

cc/output/output_surface.cc

Index: cc/output/output_surface.cc
diff --git a/cc/output/output_surface.cc b/cc/output/output_surface.cc
index efa6d13b8d720dda4dd77f1f99c1091bb063c5ff..c1a1ec2d19f76d10c3a9866e7dad9e7160c8241c 100644
--- a/cc/output/output_surface.cc
+++ b/cc/output/output_surface.cc
@@ -91,6 +91,12 @@ class SkiaGpuTraceMemoryDump : public SkTraceMemoryDump {
     NOTREACHED();
   }
 
+  LevelOfDetail getRequestedDetails() const override {
+    // TODO(ssid): Use MemoryDumpArgs to create light dumps when requested
+    // (crbug.com/499731).
+    return kObjectsBreakdowns_LevelOfDetail;
+  }
+
  private:
   // Helper to create allocator dumps.
   base::trace_event::MemoryAllocatorDump* GetOrCreateAllocatorDump(