Enable cpplint and fix cpplint errors in webrtc/*audio

webrtc/common_audio/lapped_transform.h

Index: webrtc/common_audio/lapped_transform.h
diff --git a/webrtc/common_audio/lapped_transform.h b/webrtc/common_audio/lapped_transform.h
index 42a103a854b14441dac666468161ef399e262a2d..fc03a9de39a9b1fbb5523c8033571b53c27de14e 100644
--- a/webrtc/common_audio/lapped_transform.h
+++ b/webrtc/common_audio/lapped_transform.h
@@ -99,11 +99,11 @@ class LappedTransform {
    public:
     explicit BlockThunk(LappedTransform* parent) : parent_(parent) {}
 
- void ProcessBlock(const float* const* input,
-                              size_t num_frames,
-                              size_t num_input_channels,
-                              size_t num_output_channels,
-                              float* const* output) override;
+    void ProcessBlock(const float* const* input,
+                      size_t num_frames,
+                      size_t num_input_channels,
+                      size_t num_output_channels,
+                      float* const* output) override;
 
    private:
     LappedTransform* const parent_;