Supersize: Chrome-specific breakdowns, console tweaks

tools/binary_size/libsupersize/testdata/Console.golden

+********************************************************************************
+Entering interactive Python shell. Quick reference:
+
+SizeInfo: Cluster, metadata, 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
+
+SymbolGroup (extends Symbol): Cluster, CountUniqueSymbols, Filter, GroupBy, GroupByNamespace, GroupByPath, GroupBySectionName, Inverted, IterLeafSymbols, IterUniqueSymbols, Sorted, SortedByAddress, SortedByCount, SortedByName, WhereAddressInRange, WhereBiggerThan, WhereFullNameMatches, WhereGeneratedByToolchain, WhereHasAnyAttribution, WhereHasPath, WhereInSection, WhereMatches, WhereNameMatches, WhereObjectPathMatches, WherePathMatches, WhereSourceIsGenerated, WhereSourcePathMatches, is_sorted
+
+SymbolDiff (extends SymbolGroup): IsAdded, IsRemoved, IsSimilar, WhereNotUnchanged, added_count, changed_count, removed_count, unchanged_count
+
+Functions: CategorizeByChromeComponent(), CategorizeGenerated(), Diff(), Disassemble(), ExpandRegex(), Print(), ShowExamples()
+Variables: 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.GroupBySourcePath(depth=2)
+by_path = text_syms.GroupByPath(depth=2)
 Print(by_path.WhereBiggerThan(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_}}")
 Print(print_syms - print_syms.WherePathMatches(r"^components/"))
 
 # Diff two .size files and save result to a file:
 Print(Diff(size_info1, size_info2), to_file="output.txt")
 
+# View per-component breakdowns, then inspect the "other" subgroup.
+c = GroupByChromeComponent()
+Print(c)
+Print(c[-1].GroupByPath(depth=2))
 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
 
 Section Sizes (Total=43,785,380 bytes):
     .bss: 1,300,456 bytes (not included in totals)
     .data: 101,768 bytes (0.2%)
     .data.rel.ro: 1,065,224 bytes (2.4%)
     .data.rel.ro.local: 790,024 bytes (1.8%)
     .rodata: 5,927,652 bytes (13.5%)
     .text: 35,900,712 bytes (82.0%)
 
 Showing 48 symbols (45 unique) with total pss: 44309900 bytes
 .text=34.2mb     .rodata=5.65mb     other=2.37mb     total=42.3mb
 Number of object files: 10
 
-First columns are: running total, address, pss
-35821002 t@0x24ca628  35821002 {no path}
+Index, Running Total, Section@Address, PSS
+------------------------------------------------------------
+0)         16 (0.0%)  t@0x28d900   16      base/page_allocator.cc
+             _GLOBAL__sub_I_page_allocator.cc
+1)         72 (0.0%)  t@0x28d910   56      base/page_allocator.cc
+             _GLOBAL__sub_I_bbr_sender.cc
+2)        100 (0.0%)  t@0x28d948   28      base/page_allocator.cc
+             _GLOBAL__sub_I_pacing_sender.cc
+3)        138 (0.0%)  t@0x28d964   38      base/page_allocator.cc
+             extFromUUseMapping
+4)        170 (0.0%)  t@0x28d98a   32      base/page_allocator.cc
+             extFromUUseMapping
+5)       5888 (0.0%)  t@0x28f000   5718    {no path}
+             ** symbol gap 0
+6)       6336 (0.0%)  t@0x28f000   448     third_party/icu/ucnv_ext.c
+             ucnv_extMatchFromU
+7)       6364 (0.0%)  t@0x28f1c8   28      third_party/icu/ucnv_ext.c
+             _GLOBAL__sub_I_SkDeviceProfile.cpp
+8)      75488 (0.2%)  t@0x28f1e0   69124   third_party/icu/ucnv_ext.c
+             foo_bar
+9)      75512 (0.2%)  t@0x2a0000   24      {no path}
+             blink::ContiguousContainerBase::shrinkToFit
+10)     75536 (0.2%)  t@0x2a0000   24      third_party/icu/ucnv_ext.c
+             BazAlias
+11)     75540 (0.2%)  t@0x2a0010   4       third_party/{shared}/2
+             blink::ContiguousContainerBase::shrinkToFit [clone .part.1234] [clone .isra.2]
+12)     75544 (0.2%)  t@0x2a0010   4       third_party/fft_float.cc
+             FooAlias
+13)     75548 (0.2%)  t@0x2a0010   4       third_party/fft_float.cc
+             BarAlias
+14)     75576 (0.2%)  t@0x2a0020   28      third_party/container.c
+             blink::ContiguousContainerBase::ContiguousContainerBase
+15)     79616 (0.2%)  t@0x2a1000   4040    {no path}
+             ** symbol gap 1
+16)     79710 (0.2%)  t@0x2a1000   94      third_party/container.c
+             blink::PaintChunker::releasePaintChunks [clone .part.1]
+17)  35900712 (81.0%) t@0x24ca628  35821002 {no path}
              ** symbol gap 2 (end of section)
-39107114 r@0x2c158e4  3286112 {no path}
+18)  37866121 (85.5%) r@0x266e600  1965409 {no path}
+             ** merge strings
+19)  37866124 (85.5%) r@0x284e364  3       {no path}
+             ** symbol gap 2
+20)  37866132 (85.5%) r@0x284e364  8       base/page_allocator.cc
+21)  37866176 (85.5%) r@0x284e370  44      base/page_allocator.cc
+             Name
+22)  37866208 (85.5%) r@0x284e398  32      third_party/container.c
+             chrome::mojom::FilePatcher::Name_
+23)  38542193 (87.0%) r@0x284e518  675985  {no path}
+             ** merge strings
+24)  38542248 (87.0%) r@0x28f3450  55      third_party/paint.cc
+             kAnimationFrameTimeHistogramClassPath
+25)  38542252 (87.0%) r@0x28f3480  4       third_party/paint.cc
+             blink::CSSValueKeywordsHash::findValueImpl::value_word_list
+26)  41828364 (94.4%) r@0x2c158e4  3286112 {no path}
              ** symbol gap 3 (end of section)
-41072523 r@0x266e600  1965409 {no path}
-             ** merge strings
-42137655 d@0x2ddc608  1065132 {no path}
+27)  41828420 (94.4%) d@0x2c176f0  56      third_party/icu/ucnv_ext.c
+             ChromeMainDelegate [vtable]
+28)  41828444 (94.4%) d@0x2c17728  24      third_party/icu/ucnv_ext.c
+             chrome::mojom::FieldTrialRecorder [vtable]
+29)  42618348 (96.2%) d@0x2c17740  789904  third_party/container.c
+             chrome::mojom::FieldTrialRecorderProxy [vtable]
+30)  42618380 (96.2%) d@0x2cd84e0  32      third_party/gvr-android-sdk/libgvr_shim_static_arm.a/libcontroller_api_impl.a_controller_api_impl.o
+             .Lswitch.table.45
+31)  42618388 (96.2%) d@0x2cd84f0  8       third_party/gvr-android-sdk/libgvr_shim_static_arm.a/libport_android_jni.a_jni_utils.o
+             kSystemClassPrefixes
+32)  42618444 (96.2%) d@0x2cd8500  56      third_party/paint.cc
+             ChromeMainDelegateAndroid [vtable]
+33)  42618468 (96.2%) d@0x2cd8538  24      base/page_allocator.cc
+             mojo::MessageReceiver [vtable]
+34)  42618480 (96.2%) d@0x2cd8550  12      base/page_allocator.cc
+             kMethodsAnimationFrameTimeHistogram
+35)  43683612 (98.6%) d@0x2ddc608  1065132 {no path}
              ** symbol gap 3 (end of section)
-42927559 d@0x2c17740  789904  third_party/container.c
-             chrome::mojom::FieldTrialRecorderProxy [vtable]
-43603544 r@0x284e518  675985  {no path}
-             ** merge strings
-43705144 d@0x2dffd88  101600  {no path}
+36)  43683616 (98.6%) d@0x2de7000  4       base/page_allocator.cc
+             google::protobuf::internal::pLinuxKernelCmpxchg
+37)  43683620 (98.6%) d@0x2de7004  4       third_party/container.c
+             google::protobuf::internal::pLinuxKernelMemoryBarrier
+38)  43683772 (98.6%) d@0x2de7008  152     third_party/container.c
+             base::android::kBaseRegisteredMethods
+39)  43683776 (98.6%) d@0x2de70a0  4       third_party/container.c
+             base::android::g_renderer_histogram_code
+40)  43683780 (98.6%) d@0x2de70a4  4       third_party/container.c
+             base::android::g_library_version_number
+41)  43785380 (98.8%) d@0x2dffd88  101600  {no path}
              ** symbol gap 3 (end of section)
-43774268 t@0x28f1e0   69124   third_party/icu/ucnv_ext.c
-             foo_bar
-43779986 t@0x28f000   5718    {no path}
-             ** symbol gap 0
-43784026 t@0x2a1000   4040    {no path}
-             ** symbol gap 1
-43784474 t@0x28f000   448     third_party/icu/ucnv_ext.c
-             ucnv_extMatchFromU
-43784626 d@0x2de7008  152     third_party/container.c
-             base::android::kBaseRegisteredMethods
-43784720 t@0x2a1000   94      third_party/container.c
-             blink::PaintChunker::releasePaintChunks [clone .part.1]
-43784776 d@0x2c176f0  56      third_party/icu/ucnv_ext.c
-             ChromeMainDelegate [vtable]
-43784832 d@0x2cd8500  56      third_party/paint.cc
-             ChromeMainDelegateAndroid [vtable]
-43784888 t@0x28d910   56      base/page_allocator.cc
-             _GLOBAL__sub_I_bbr_sender.cc
-43784943 r@0x28f3450  55      third_party/paint.cc
-             kAnimationFrameTimeHistogramClassPath
-43784967 t@0x2a0000   24      third_party/icu/ucnv_ext.c
-             BazAlias
-43784991 t@0x2a0000   24      {no path}
-             blink::ContiguousContainerBase::shrinkToFit
-43785035 r@0x284e370  44      base/page_allocator.cc
-             Name
-43785073 t@0x28d964   38      base/page_allocator.cc
-             extFromUUseMapping
-43785105 d@0x2cd84e0  32      third_party/gvr-android-sdk/libgvr_shim_static_arm.a/libcontroller_api_impl.a_controller_api_impl.o
-             .Lswitch.table.45
-43785137 r@0x284e398  32      third_party/container.c
-             chrome::mojom::FilePatcher::Name_
-43785169 t@0x28d98a   32      base/page_allocator.cc
-             extFromUUseMapping
-43785197 t@0x28f1c8   28      third_party/icu/ucnv_ext.c
-             _GLOBAL__sub_I_SkDeviceProfile.cpp
-43785225 t@0x28d948   28      base/page_allocator.cc
-             _GLOBAL__sub_I_pacing_sender.cc
-43785253 t@0x2a0020   28      third_party/container.c
-             blink::ContiguousContainerBase::ContiguousContainerBase
-43785277 d@0x2c17728  24      third_party/icu/ucnv_ext.c
-             chrome::mojom::FieldTrialRecorder [vtable]
-43785301 d@0x2cd8538  24      base/page_allocator.cc
-             mojo::MessageReceiver [vtable]
-43785317 t@0x28d900   16      base/page_allocator.cc
-             _GLOBAL__sub_I_page_allocator.cc
-43785321 t@0x2a0010   4       third_party/fft_float.cc
-             BarAlias
-43785325 t@0x2a0010   4       third_party/fft_float.cc
-             FooAlias
-43785329 t@0x2a0010   4       third_party/{shared}/2
-             blink::ContiguousContainerBase::shrinkToFit [clone .part.1234] [clone .isra.2]
-43785341 d@0x2cd8550  12      base/page_allocator.cc
-             kMethodsAnimationFrameTimeHistogram
-43785349 r@0x284e364  8       base/page_allocator.cc
-43785357 d@0x2cd84f0  8       third_party/gvr-android-sdk/libgvr_shim_static_arm.a/libport_android_jni.a_jni_utils.o
-             kSystemClassPrefixes
-43785361 d@0x2de70a4  4       third_party/container.c
-             base::android::g_library_version_number
-43785365 d@0x2de70a0  4       third_party/container.c
-             base::android::g_renderer_histogram_code
-43785369 r@0x28f3480  4       third_party/paint.cc
-             blink::CSSValueKeywordsHash::findValueImpl::value_word_list
-43785373 d@0x2de7000  4       base/page_allocator.cc
-             google::protobuf::internal::pLinuxKernelCmpxchg
-43785377 d@0x2de7004  4       third_party/container.c
-             google::protobuf::internal::pLinuxKernelMemoryBarrier
-43785380 r@0x284e364  3       {no path}
-             ** symbol gap 2
-43785380 b@0x0        262144  third_party/fft_float.cc
+42)  43785380 (98.8%) b@0x0        262144  third_party/fft_float.cc
              ff_cos_131072
-43785380 b@0x0        131072  third_party/fft_fixed.cc
+43)  43785380 (98.8%) b@0x0        131072  third_party/fft_fixed.cc
              ff_cos_131072_fixed
-43785380 b@0x0        131072  third_party/fft_float.cc
+44)  43785380 (98.8%) b@0x0        131072  third_party/fft_float.cc
              ff_cos_65536
-43785380 b@0x2dffe80  200     third_party/icu/ucnv_ext.c
+45)  43785380 (98.8%) b@0x2dffda0  28      third_party/icu/ucnv_ext.c
+             g_chrome_content_browser_client
+46)  43785380 (98.8%) b@0x2dffe80  200     third_party/icu/ucnv_ext.c
              SaveHistogram::atomic_histogram_pointer
-43785380 b@0x2dffda0  28      third_party/icu/ucnv_ext.c
-             g_chrome_content_browser_client
-43785380 b@0x2dffe84  4       third_party/icu/ucnv_ext.c
+47)  43785380 (98.8%) b@0x2dffe84  4       third_party/icu/ucnv_ext.c
              g_AnimationFrameTimeHistogram_clazz