supersize: Make Disassemble() work for downloaded .size files

tools/binary_size/libsupersize/testdata/Console.golden

 ********************************************************************************
 Entering interactive Python shell. Quick reference:
 
 SizeInfo: Clustered, metadata, raw_symbols, section_sizes, symbols
 Symbol: FlagsString, IsBss, IsGeneratedByToolchain, IsGroup, address, aliases, end_address, flags, full_name, generated_source, is_anonymous, name, num_aliases, object_path, padding, pss, pss_without_padding, section, section_name, size, size_without_padding, source_path, template_name
 
-SymbolGroup (extends Symbol): Clustered, CountUniqueSymbols, Filter, GroupedBy, GroupedByName, GroupedByPath, GroupedBySectionName, Inverted, IterLeafSymbols, IterUniqueSymbols, Sorted, SortedByAddress, SortedByCount, SortedByName, WhereAddressInRange, WhereBiggerThan, WhereFullNameMatches, WhereGeneratedByToolchain, WhereHasAnyAttribution, WhereHasPath, WhereInSection, WhereIsTemplate, WhereMatches, WhereNameMatches, WhereObjectPathMatches, WherePathMatches, WhereSourceIsGenerated, WhereSourcePathMatches, WhereTemplateNameMatches, is_sorted
+SymbolGroup (extends Symbol): Clustered, CountUniqueSymbols, Filter, GroupedBy, GroupedByName, GroupedByPath, GroupedBySectionName, Inverted, IterLeafSymbols, IterUniqueSymbols, Sorted, SortedByAddress, SortedByCount, SortedByName, WhereAddressInRange, WhereFullNameMatches, WhereGeneratedByToolchain, WhereHasAnyAttribution, WhereHasPath, WhereInSection, WhereIsTemplate, WhereMatches, WhereNameMatches, WhereObjectPathMatches, WherePathMatches, WherePssBiggerThan, WhereSizeBiggerThan, WhereSourceIsGenerated, WhereSourcePathMatches, WhereTemplateNameMatches, is_sorted
 
 SymbolDiff (extends SymbolGroup): IsAdded, IsRemoved, IsSimilar, WhereNotUnchanged, added_count, changed_count, removed_count, unchanged_count
 
 canned_queries: CategorizeByChromeComponent, CategorizeGenerated, TemplatesByName
 
 Functions: Diff(), Disassemble(), ExpandRegex(), Print(), ShowExamples()
 Variables: canned_queries, size_info
 ********************************************************************************
 # Show pydoc for main types:
 import models
 help(models)
 
 # Show all attributes of all symbols & per-section totals:
 Print(size_info, verbose=True)
 
 # Show two levels of .text, grouped by first two subdirectories
 text_syms = size_info.symbols.WhereInSection("t")
 by_path = text_syms.GroupedByPath(depth=2)
-Print(by_path.WhereBiggerThan(1024))
+Print(by_path.WherePssBiggerThan(1024))
 
 # Show all non-vtable generated symbols
 generated_syms = size_info.symbols.WhereGeneratedByToolchain()
 Print(generated_syms.WhereNameMatches(r"vtable").Inverted().Sorted())
 
 # Show all symbols that have "print" in their name or path, except
 # those within components/.
 # Note: Could have also used Inverted(), as above.
 # Note: Use "help(ExpandRegex)" for more about what {{_print_}} does.
 print_syms = size_info.symbols.WhereMatches(r"{{_print_}}")
@@ skipping 10 matching lines @@
 # For even more inspiration, look at canned_queries.py
 # (and feel free to add your own!).
 Metadata:
     elf_arch=arm
     elf_build_id=WhatAnAmazingBuildId
     elf_file_name=elf
     elf_mtime={redacted}
     git_revision=abc123
     gn_args=var1=true var2="foo"
     map_file_name=../test.map
+    tool_prefix=tools/binary_size/libsupersize/testdata/mock_toolchain/
 
 Section Sizes (Total=41.8mb (43785380 bytes)):
     .bss: 1.24mb (1300456 bytes) (not included in totals)
     .data: 99.4kb (101768 bytes) (0.2%)
     .data.rel.ro: 1.02mb (1065224 bytes) (2.4%)
     .data.rel.ro.local: 771kb (790024 bytes) (1.8%)
     .rodata: 5.65mb (5927652 bytes) (13.5%)
     .text: 34.2mb (35900712 bytes) (82.0%)
 
 Showing 48 symbols (45 unique) with total pss: 43785380 bytes
@@ skipping 90 matching lines @@
 43)  43785380 (100.0%) b@0x0        131072  third_party/fft_fixed.cc
              ff_cos_131072_fixed
 44)  43785380 (100.0%) b@0x0        131072  third_party/fft_float.cc
              ff_cos_65536
 45)  43785380 (100.0%) b@0x2dffda0  28      third_party/icu/ucnv_ext.c
              g_chrome_content_browser_client
 46)  43785380 (100.0%) b@0x2dffe80  200     third_party/icu/ucnv_ext.c
              SaveHistogram::atomic_histogram_pointer
 47)  43785380 (100.0%) b@0x2dffe84  4       third_party/icu/ucnv_ext.c
              g_AnimationFrameTimeHistogram_clazz