CodeHealth: Remove use of DictionaryValue::size()

This change removes the use of DictionaryValue::size()
and replaces with Value::DictSize()

Bug: 1187019
Change-Id: I3a4cb77880286900049aa3d2e113aefb0c551736
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2878265
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Fangzhen Song <songfangzhen@bytedance.com>
Cr-Commit-Position: refs/heads/master@{#880351}

chrome/browser/media/webrtc/webrtc_video_display_perf_browsertest.cc

@@ -133,7 +133,7 @@ std::vector<double> ParseGoogMaxDecodeFromWebrtcInternalsTab(
   ignore_result(parsed_json.release());
 
   // |dictionary| should have exactly two entries, one per ssrc.
-  if (!dictionary || dictionary->size() != 2u)
+  if (!dictionary || dictionary->DictSize() != 2u)
     return goog_decode_ms;
 
   // Only a given |dictionary| entry will have a "stats" entry that has a key

content/browser/webrtc/webrtc_internals_browsertest.cc

@@ -462,7 +462,7 @@ class MAYBE_WebRtcInternalsBrowserTest: public ContentBrowserTest {
 
     base::DictionaryValue* dict_dump =
         static_cast<base::DictionaryValue*>(dump);
-    EXPECT_EQ((size_t) peer_connection_number, dict_dump->size());
+    EXPECT_EQ((size_t)peer_connection_number, dict_dump->DictSize());
 
     base::DictionaryValue::Iterator it(*dict_dump);
     for (; !it.IsAtEnd(); it.Advance()) {
@@ -484,7 +484,7 @@ class MAYBE_WebRtcInternalsBrowserTest: public ContentBrowserTest {
       pc_dump->Get("stats", &value);
       EXPECT_EQ(base::Value::Type::DICTIONARY, value->type());
       base::DictionaryValue* dict = static_cast<base::DictionaryValue*>(value);
-      EXPECT_EQ((size_t) stats_number, dict->size());
+      EXPECT_EQ((size_t)stats_number, dict->DictSize());
     }
   }
 
@@ -511,7 +511,7 @@ class MAYBE_WebRtcInternalsBrowserTest: public ContentBrowserTest {
 
     base::DictionaryValue* dataSeries =
         static_cast<base::DictionaryValue*>(value);
-    EXPECT_EQ(stats.values.size(), dataSeries->size());
+    EXPECT_EQ(stats.values.size(), dataSeries->DictSize());
   }
 };