Samples: Move frame counter to common location.

Bug: angleproject:5040
Change-Id: I64f762b4eb5734f0768054a330a36e20ff9ba93e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2408713
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Cody Northrop <cnorthrop@google.com>

samples/capture_replay/CaptureReplay.cpp

@@ -30,7 +30,13 @@ class CaptureReplaySample : public SampleApplication
 {
   public:
     CaptureReplaySample(int argc, char **argv)
-        : SampleApplication("CaptureReplaySample", argc, argv, 3, 0)
+        : SampleApplication("CaptureReplaySample",
+                            argc,
+                            argv,
+                            3,
+                            0,
+                            kReplayDrawSurfaceWidth,
+                            kReplayDrawSurfaceHeight)
     {}
 
     bool initialize() override

samples/sample_util/SampleApplication.cpp

@@ -85,6 +85,7 @@ SampleApplication::SampleApplication(std::string name,
       mWidth(width),
       mHeight(height),
       mRunning(false),
+      mFrameCount(0),
       mGLWindow(nullptr),
       mEGLWindow(nullptr),
       mOSWindow(nullptr),
@@ -270,6 +271,14 @@ int SampleApplication::run()
         mOSWindow->messageLoop();
 
         prevTime = elapsedTime;
+
+        mFrameCount++;
+
+        if (mFrameCount % 100 == 0)
+        {
+            printf("Rate: %0.2lf frames / second\n",
+                   static_cast<double>(mFrameCount) / mTimer.getElapsedTime());
+        }
     }
 
     destroy();

samples/sample_util/SampleApplication.h

@@ -67,6 +67,7 @@ class SampleApplication
     bool mRunning;
 
     Timer mTimer;
+    uint32_t mFrameCount;
     GLWindowBase *mGLWindow;
     EGLWindow *mEGLWindow;
     OSWindow *mOSWindow;

samples/simple_texture_2d/SimpleTexture2D.cpp

@@ -61,8 +61,6 @@ void main()
 
         glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 
-        mTimer.start();
-
         return true;
     }
 
@@ -112,14 +110,6 @@ void main()
         glUniform1i(mSamplerLoc, 0);
 
         glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
-
-        mDrawCount++;
-
-        if (mDrawCount % 100 == 0)
-        {
-            printf("Rate: %0.2lf iterations / second\n",
-                   static_cast<double>(mDrawCount) / mTimer.getElapsedTime());
-        }
     }
 
   private:
@@ -135,9 +125,6 @@ void main()
 
     // Texture handle
     GLuint mTexture;
-
-    Timer mTimer;
-    uint32_t mDrawCount = 0;
 };
 
 int main(int argc, char **argv)