deep_memory_profiler: Replace 'WebCore' with 'blink'.

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 b444f8c9d734fb6a5acfa278b419fd3fa3b980cd..cea17ab0a76fa067f12ea628809c753eda7c83c5 100644
--- a/tools/deep_memory_profiler/policy.linux.browser.json
+++ b/tools/deep_memory_profiler/policy.linux.browser.json
@@ -198,17 +198,17 @@
     },
     {
       "name": "mmap-blink-css",
-      "stacktrace": ".*WebCore::Element::createPseudo.*",
+      "stacktrace": ".*blink::Element::createPseudo.*",
       "allocator": "mmap"
     },
     {
       "name": "mmap-blink-document",
-      "stacktrace": ".*WebCore::.*(DocumentType::Comment|Text|(HTML|SVG).*Element)::create.*",
+      "stacktrace": ".*blink::.*(DocumentType::Comment|Text|(HTML|SVG).*Element)::create.*",
       "allocator": "mmap"
     },
     {
       "name": "mmap-blink-layout",
-      "stacktrace": ".*WebCore::Render.*",
+      "stacktrace": ".*blink::Render.*",
       "allocator": "mmap"
     },
     {
@@ -314,12 +314,12 @@
     },
     {
       "name": "tc-blink-css",
-      "stacktrace": ".*(WTF::|WebCore::|WebKit::).*(CSS|Style|Sheet).*",
+      "stacktrace": ".*(WTF::|blink::|WebKit::).*(CSS|Style|Sheet).*",
       "allocator": "malloc"
     },
     {
       "name": "tc-webkit-catch-all",
-      "stacktrace": ".*(WTF::|WebCore::|WebKit::).*",
+      "stacktrace": ".*(WTF::|blink::|WebKit::).*",
       "allocator": "malloc"
     },
     {