Enable cpplint for more webrtc subfolders and fix all uncovered cpplint errors.

webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc

Index: webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc
diff --git a/webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc b/webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc
index bae145a78fcd72443336c4bc61576d65cd379bea..737661c3df0838ddb6d73653f2ccd7d42b1a4219 100644
--- a/webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc
+++ b/webrtc/tools/psnr_ssim_analyzer/psnr_ssim_analyzer.cc
@@ -25,7 +25,7 @@ void CompareFiles(const char* reference_file_name, const char* test_file_name,
                   const char* results_file_name, int width, int height) {
   // Check if the reference_file_name ends with "y4m".
   bool y4m_mode = false;
-  if (std::string(reference_file_name).find("y4m") != std::string::npos){
+  if (std::string(reference_file_name).find("y4m") != std::string::npos) {
     y4m_mode = true;
   }
 
@@ -38,8 +38,8 @@ void CompareFiles(const char* reference_file_name, const char* test_file_name,
   uint8_t* ref_frame = new uint8_t[size];
 
   bool read_result = true;
-  for(int frame_counter = 0; frame_counter < MAX_NUM_FRAMES_PER_FILE;
-      ++frame_counter){
+  for (int frame_counter = 0; frame_counter < MAX_NUM_FRAMES_PER_FILE;
+      ++frame_counter) {
     read_result &= (y4m_mode) ? webrtc::test::ExtractFrameFromY4mFile(
         reference_file_name, width, height, frame_counter, ref_frame):
         webrtc::test::ExtractFrameFromYuvFile(reference_file_name, width,