Fix 64 bit truncations in renderer/modules.

Fix a few last truncation errors.

BUG=879657

Change-Id: I75339fe7a46efa336bdaa91c73c21a5c673b32f3
Reviewed-on: https://chromium-review.googlesource.com/c/1355856Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612462}

third_party/blink/renderer/modules/peerconnection/adapters/p2p_quic_stream_impl.cc

@@ -5,6 +5,7 @@
 #include "third_party/blink/renderer/modules/peerconnection/adapters/p2p_quic_stream_impl.h"
 
 #include "net/third_party/quic/core/quic_error_codes.h"
+#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
 
 namespace blink {
 
@@ -85,7 +86,7 @@ void P2PQuicStreamImpl::OnStreamDataConsumed(size_t bytes_consumed) {
   QuicStream::OnStreamDataConsumed(bytes_consumed);
   if (bytes_consumed > 0) {
     write_buffered_amount_ -= bytes_consumed;
-    delegate_->OnWriteDataConsumed(bytes_consumed);
+    delegate_->OnWriteDataConsumed(SafeCast<uint32_t>(bytes_consumed));
   }
 }
 

third_party/blink/renderer/modules/peerconnection/byte_buffer_queue.cc

@@ -14,7 +14,8 @@ wtf_size_t ByteBufferQueue::ReadInto(base::span<uint8_t> buffer_out) {
             .subspan(front_buffer_offset_);
     DCHECK_GT(front_buffer.size(), 0u);
     wtf_size_t buffer_read_amount =
-        std::min(buffer_out.size(), front_buffer.size());
+        std::min(static_cast<wtf_size_t>(buffer_out.size()),
+                 static_cast<wtf_size_t>(front_buffer.size()));
     memcpy(buffer_out.data(), front_buffer.data(), buffer_read_amount);
     read_amount += buffer_read_amount;
     buffer_out = buffer_out.subspan(buffer_read_amount);

third_party/blink/renderer/modules/webdatabase/sqlite/sqlite_statement.cc

@@ -102,7 +102,7 @@ int SQLiteStatement::Prepare() {
 
     // Pass the length of the string including the null character to
     // sqlite3_prepare_v2; this lets SQLite avoid an extra string copy.
-    size_t length_including_null_character = query.length() + 1;
+    wtf_size_t length_including_null_character = query.length() + 1;
 
     error = sqlite3_prepare_v2(database_.Sqlite3Handle(), query.data(),
                                length_including_null_character, statement.get(),