[NOT FOR REVIEW] Convert channel counts to size_t.

webrtc/modules/audio_processing/splitting_filter.cc

Index: webrtc/modules/audio_processing/splitting_filter.cc
diff --git a/webrtc/modules/audio_processing/splitting_filter.cc b/webrtc/modules/audio_processing/splitting_filter.cc
index 06af56e7bdf19d00f8e363593e2b8ce857603c38..49ab89b7d83af6081654ccc5de5ce61a8c3a9d4b 100644
--- a/webrtc/modules/audio_processing/splitting_filter.cc
+++ b/webrtc/modules/audio_processing/splitting_filter.cc
@@ -16,7 +16,7 @@
 
 namespace webrtc {
 
-SplittingFilter::SplittingFilter(int num_channels,
+SplittingFilter::SplittingFilter(size_t num_channels,
                                  size_t num_bands,
                                  size_t num_frames)
     : num_bands_(num_bands) {
@@ -24,7 +24,7 @@ SplittingFilter::SplittingFilter(int num_channels,
   if (num_bands_ == 2) {
     two_bands_states_.resize(num_channels);
   } else if (num_bands_ == 3) {
-    for (int i = 0; i < num_channels; ++i) {
+    for (size_t i = 0; i < num_channels; ++i) {
       three_band_filter_banks_.push_back(new ThreeBandFilterBank(num_frames));
     }
   }
@@ -58,7 +58,7 @@ void SplittingFilter::Synthesis(const IFChannelBuffer* bands,
 
 void SplittingFilter::TwoBandsAnalysis(const IFChannelBuffer* data,
                                        IFChannelBuffer* bands) {
-  DCHECK_EQ(static_cast<int>(two_bands_states_.size()), data->num_channels());
+  DCHECK_EQ(two_bands_states_.size(), data->num_channels());
   for (size_t i = 0; i < two_bands_states_.size(); ++i) {
     WebRtcSpl_AnalysisQMF(data->ibuf_const()->channels()[i],
                           data->num_frames(),
@@ -71,7 +71,7 @@ void SplittingFilter::TwoBandsAnalysis(const IFChannelBuffer* data,
 
 void SplittingFilter::TwoBandsSynthesis(const IFChannelBuffer* bands,
                                         IFChannelBuffer* data) {
-  DCHECK_EQ(static_cast<int>(two_bands_states_.size()), data->num_channels());
+  DCHECK_EQ(two_bands_states_.size(), data->num_channels());
   for (size_t i = 0; i < two_bands_states_.size(); ++i) {
     WebRtcSpl_SynthesisQMF(bands->ibuf_const()->channels(0)[i],
                            bands->ibuf_const()->channels(1)[i],
@@ -84,8 +84,7 @@ void SplittingFilter::TwoBandsSynthesis(const IFChannelBuffer* bands,
 
 void SplittingFilter::ThreeBandsAnalysis(const IFChannelBuffer* data,
                                          IFChannelBuffer* bands) {
-  DCHECK_EQ(static_cast<int>(three_band_filter_banks_.size()),
-            data->num_channels());
+  DCHECK_EQ(three_band_filter_banks_.size(), data->num_channels());
   for (size_t i = 0; i < three_band_filter_banks_.size(); ++i) {
     three_band_filter_banks_[i]->Analysis(data->fbuf_const()->channels()[i],
                                           data->num_frames(),
@@ -95,8 +94,7 @@ void SplittingFilter::ThreeBandsAnalysis(const IFChannelBuffer* data,
 
 void SplittingFilter::ThreeBandsSynthesis(const IFChannelBuffer* bands,
                                           IFChannelBuffer* data) {
-  DCHECK_EQ(static_cast<int>(three_band_filter_banks_.size()),
-            data->num_channels());
+  DCHECK_EQ(three_band_filter_banks_.size(), data->num_channels());
   for (size_t i = 0; i < three_band_filter_banks_.size(); ++i) {
     three_band_filter_banks_[i]->Synthesis(bands->fbuf_const()->bands(i),
                                            bands->num_frames_per_band(),