blink: Fix naming and const-ness of constants and non-constants.

third_party/WebKit/Source/platform/audio/FFTFrame.cpp

Index: third_party/WebKit/Source/platform/audio/FFTFrame.cpp
diff --git a/third_party/WebKit/Source/platform/audio/FFTFrame.cpp b/third_party/WebKit/Source/platform/audio/FFTFrame.cpp
index 76534ed65c68d5b1828e1a4353fdaec06b4aa7f2..5abb2e33c09f1f7549a7e742538beab4c3fde0b2 100644
--- a/third_party/WebKit/Source/platform/audio/FFTFrame.cpp
+++ b/third_party/WebKit/Source/platform/audio/FFTFrame.cpp
@@ -180,7 +180,7 @@ double FFTFrame::extractAverageGroupDelay()
 
     int halfSize = fftSize() / 2;
 
-    const double kSamplePhaseDelay = (twoPiDouble) / double(fftSize());
+    const double samplePhaseDelay = (twoPiDouble) / static_cast<double>(fftSize());
 
     // Calculate weighted average group delay
     for (int i = 0; i < halfSize; i++) {
@@ -203,7 +203,7 @@ double FFTFrame::extractAverageGroupDelay()
 
     // Note how we invert the phase delta wrt frequency since this is how group delay is defined
     double ave = aveSum / weightSum;
-    double aveSampleDelay = -ave / kSamplePhaseDelay;
+    double aveSampleDelay = -ave / samplePhaseDelay;
 
     // Leave 20 sample headroom (for leading edge of impulse)
     if (aveSampleDelay > 20.0)
@@ -225,9 +225,9 @@ void FFTFrame::addConstantGroupDelay(double sampleFrameDelay)
     float* realP = realData();
     float* imagP = imagData();
 
-    const double kSamplePhaseDelay = (twoPiDouble) / double(fftSize());
+    const double samplePhaseDelay = (twoPiDouble) / static_cast<double>(fftSize());
 
-    double phaseAdj = -sampleFrameDelay * kSamplePhaseDelay;
+    double phaseAdj = -sampleFrameDelay * samplePhaseDelay;
 
     // Add constant group delay
     for (int i = 1; i < halfSize; i++) {