Add GlyphMetricsMap memory consumption to memory-infra tracing

third_party/WebKit/Source/platform/fonts/FontDataCache.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 12 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/fonts/FontDataCache.h"
 
+#include "base/trace_event/process_memory_dump.h"
 #include "platform/fonts/SimpleFontData.h"
 
 using namespace WTF;
 
 namespace blink {
 
 #if !OS(ANDROID)
 const unsigned cMaxInactiveFontData = 250;
 const unsigned cTargetInactiveFontData = 200;
 #else
@@ skipping 110 matching lines @@
 
     bool didWork = fontDataToDelete.size();
 
     fontDataToDelete.clear();
 
     isPurging = false;
 
     return didWork;
 }
 
+void FontDataCache::dumpCountAndGlyphToBoundsMaps(base::trace_event::ProcessMemoryDump* memoryDump)
+{
+    base::trace_event::MemoryAllocatorDump* dump = memoryDump->CreateAllocatorDump("font_caches/font_data_cache");
+    dump->AddScalar("objects_in_cache", "count", m_cache.size());
+    dump->AddScalar("inactive_objects", "count", m_inactiveFontData.size());
+
+    size_t glyphToBoundsMapTotalSize = 0;
+    for (auto entry : m_cache) {
+        glyphToBoundsMapTotalSize += entry.value.first->glyphToBoundsMapMemorySize();
+    }
+    dump->AddScalar("glyphtoboundsmaps_total_size", "bytes", glyphToBoundsMapTotalSize);
+
+    memoryDump->AddSuballocation(dump->guid(), WTF::Partitions::kAllocatedObjectPoolName);
+}
+
 } // namespace blink