Better grouping of data in Deep Memory Profiler

tools/deep_memory_profiler/policy.linux.browser.json

Index: tools/deep_memory_profiler/policy.linux.browser.json
diff --git a/tools/deep_memory_profiler/policy.linux.browser.json b/tools/deep_memory_profiler/policy.linux.browser.json
index 16f4e118600b320c24d49c35c020276447edf5b0..b444f8c9d734fb6a5acfa278b419fd3fa3b980cd 100644
--- a/tools/deep_memory_profiler/policy.linux.browser.json
+++ b/tools/deep_memory_profiler/policy.linux.browser.json
@@ -24,10 +24,12 @@
     "mmap-gpu-transfer-ringbuffer",
     "mmap-gpu-gles2-createbuffer",
     "mmap-skia-font",
+    "mmap-blink-css",
+    "mmap-blink-document",
+    "mmap-blink-layout",
     "mmap-catch-all",
+    "tc-histogram",
     "tc-glib",
-    "tc-std-bits-string",
-    "tc-std-bits-ptsynch",
     "tc-skia",
     "tc-sqlite",
     "tc-syncer",
@@ -43,10 +45,14 @@
     "tc-history-urlindex-privatedata",
     "tc-crlset",
     "tc-extension-host",
+    "tc-extension-catch-all",
     "tc-bookmark-codec",
+    "tc-blink-css",
     "tc-webkit-catch-all",
     "tc-v8-catch-all",
     "tc-toplevel-string",
+    "tc-std-bits-string",
+    "tc-std-bits-ptsynch",
     "tc-std-treemap",
     "tc-std-hashmap",
     "tc-std-vector",
@@ -191,23 +197,33 @@
       "allocator": "mmap"
     },
     {
-      "name": "mmap-catch-all",
-      "stacktrace": ".*",
+      "name": "mmap-blink-css",
+      "stacktrace": ".*WebCore::Element::createPseudo.*",
       "allocator": "mmap"
     },
     {
-      "name": "tc-glib",
-      "stacktrace": ".*(g_realloc|g_malloc.?|slab_allocator_alloc_chunk)($| .*)",
-      "allocator": "malloc"
+      "name": "mmap-blink-document",
+      "stacktrace": ".*WebCore::.*(DocumentType::Comment|Text|(HTML|SVG).*Element)::create.*",
+      "allocator": "mmap"
     },
     {
-      "name": "tc-std-bits-string",
-      "stacksourcefile": ".*/usr/include/.*/bits/string.*",
+      "name": "mmap-blink-layout",
+      "stacktrace": ".*WebCore::Render.*",
+      "allocator": "mmap"
+    },
+    {
+      "name": "mmap-catch-all",
+      "stacktrace": ".*",
+      "allocator": "mmap"
+    },
+    {
+      "name": "tc-histogram",
+      "stacktrace": ".*([hH]istogram|UseCount).*",
       "allocator": "malloc"
     },
     {
-      "name": "tc-std-bits-ptsynch",
-      "stacksourcefile": "/usr/include/.*/bits/ptsynch.*",
+      "name": "tc-glib",
+      "stacktrace": ".*(g_realloc|g_malloc.?|slab_allocator_alloc_chunk)($| .*)",
       "allocator": "malloc"
     },
     {
@@ -287,11 +303,21 @@
       "allocator": "malloc"
     },
     {
+      "name": "tc-extension-catch-all",
+      "stacktrace": ".*extensions::.*",
+      "allocator": "malloc"
+    },
+    {
       "name": "tc-bookmark-codec",
       "stacktrace": ".*BookmarkCodec::.*",
       "allocator": "malloc"
     },
     {
+      "name": "tc-blink-css",
+      "stacktrace": ".*(WTF::|WebCore::|WebKit::).*(CSS|Style|Sheet).*",
+      "allocator": "malloc"
+    },
+    {
       "name": "tc-webkit-catch-all",
       "stacktrace": ".*(WTF::|WebCore::|WebKit::).*",
       "allocator": "malloc"
@@ -322,6 +348,16 @@
       "allocator": "malloc"
     },
     {
+      "name": "tc-std-bits-string",
+      "stacksourcefile": ".*/usr/include/.*/bits/string.*",
+      "allocator": "malloc"
+    },
+    {
+      "name": "tc-std-bits-ptsynch",
+      "stacksourcefile": "/usr/include/.*/bits/ptsynch.*",
+      "allocator": "malloc"
+    },
+    {
       "name": "tc-std-other",
       "stacktrace": ".*(__gnu_cxx::new_allocator::allocate|std::__1::allocator::allocate).*",
       "allocator": "malloc"