From dcc60711b9c1e8358cc6c961db4e6b5cf05e1472 Mon Sep 17 00:00:00 2001
From: "vandebo@chromium.org"
 <vandebo@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Mon, 30 May 2011 17:36:07 +0000
Subject: Add metrics to determine what font types are being used with print
 preview.

This depends on Skia r1444.

BUG=80918
TEST=NONE

Review URL: http://codereview.chromium.org/7084021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@87242 0039d316-1c4b-4281-b951-d872f2087c98
---
 printing/pdf_metafile_skia.cc | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'printing/pdf_metafile_skia.cc')

diff --git a/printing/pdf_metafile_skia.cc b/printing/pdf_metafile_skia.cc
index f76eb70..2558a84 100644
--- a/printing/pdf_metafile_skia.cc
+++ b/printing/pdf_metafile_skia.cc
@@ -7,23 +7,33 @@
 #include "base/eintr_wrapper.h"
 #include "base/file_descriptor_posix.h"
 #include "base/file_util.h"
+#include "base/hash_tables.h"
+#include "base/metrics/histogram.h"
 #include "skia/ext/vector_platform_device_skia.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "third_party/skia/include/core/SkScalar.h"
 #include "third_party/skia/include/core/SkStream.h"
+#include "third_party/skia/include/core/SkTypeface.h"
 #include "third_party/skia/include/pdf/SkPDFDevice.h"
 #include "third_party/skia/include/pdf/SkPDFDocument.h"
+#include "third_party/skia/include/pdf/SkPDFFont.h"
 #include "third_party/skia/include/pdf/SkPDFPage.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
+namespace {
+  typedef base::hash_map<SkFontID, SkAdvancedTypefaceMetrics::FontType>
+      FontTypeMap;
+};
+
 namespace printing {
 
 struct PdfMetafileSkiaData {
   SkRefPtr<SkPDFDevice> current_page_;
   SkPDFDocument pdf_doc_;
   SkDynamicMemoryWStream pdf_stream_;
+  FontTypeMap font_type_stats_;
 };
 
 PdfMetafileSkia::~PdfMetafileSkia() {}
@@ -71,6 +81,13 @@ bool PdfMetafileSkia::StartPage(const gfx::Size& page_size,
 bool PdfMetafileSkia::FinishPage() {
   DCHECK(data_->current_page_.get());
 
+  const SkTDArray<SkPDFFont*>& font_resources =
+      data_->current_page_->getFontResources();
+  for (int i = 0; i < font_resources.count(); i++) {
+    SkFontID key = font_resources[i]->typeface()->uniqueID();
+    data_->font_type_stats_[key] = font_resources[i]->getType();
+  }
+
   data_->pdf_doc_.appendPage(data_->current_page_);
   data_->current_page_ = NULL;
   return true;
@@ -83,6 +100,16 @@ bool PdfMetafileSkia::FinishDocument() {
 
   if (data_->current_page_.get())
     FinishPage();
+
+  for (FontTypeMap::const_iterator it = data_->font_type_stats_.begin();
+       it != data_->font_type_stats_.end();
+       it++) {
+    UMA_HISTOGRAM_ENUMERATION(
+        "PrintPreview.FontType",
+        it->second,
+        SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1);
+  }
+
   return data_->pdf_doc_.emitPDF(&data_->pdf_stream_);
 }
 
-- 
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