[Impeller] Move GetSecondsElapsed to Playground (flutter#38375)

Author: bdero

impeller/playground/compute_playground_test.cc

@@ -62,8 +62,4 @@ std::string ComputePlaygroundTest::GetWindowTitle() const {
   return FormatWindowTitle(flutter::testing::GetCurrentTestName());
 }
 
-Scalar ComputePlaygroundTest::GetSecondsElapsed() const {
-  return (fml::TimePoint::Now().ToEpochDelta() - start_time_).ToSecondsF();
-}
-
 }  // namespace impeller

impeller/playground/compute_playground_test.h

@@ -36,10 +36,6 @@ class ComputePlaygroundTest
   // |Playground|
   std::string GetWindowTitle() const override;
 
-  /// @brief Get the amount of time elapsed from the start of the playground
-  ///        test's execution.
-  Scalar GetSecondsElapsed() const;
-
  private:
   fml::TimeDelta start_time_;
 

impeller/playground/playground.cc

@@ -7,6 +7,7 @@
 #include <optional>
 #include <sstream>
 
+#include "fml/time/time_point.h"
 #include "impeller/image/decompressed_image.h"
 #include "impeller/renderer/command_buffer.h"
 #include "impeller/runtime_stage/runtime_stage.h"
@@ -126,6 +127,8 @@ void Playground::SetupWindow() {
     return;
   }
   renderer_ = std::move(renderer);
+
+  start_time_ = fml::TimePoint::Now().ToEpochDelta();
 }
 
 void Playground::TeardownWindow() {
@@ -165,6 +168,10 @@ Point Playground::GetContentScale() const {
   return impl_->GetContentScale();
 }
 
+Scalar Playground::GetSecondsElapsed() const {
+  return (fml::TimePoint::Now().ToEpochDelta() - start_time_).ToSecondsF();
+}
+
 void Playground::SetCursorPosition(Point pos) {
   cursor_position_ = pos;
 }

impeller/playground/playground.h

@@ -8,6 +8,7 @@
 
 #include "flutter/fml/closure.h"
 #include "flutter/fml/macros.h"
+#include "flutter/fml/time/time_delta.h"
 
 #include "impeller/geometry/point.h"
 #include "impeller/renderer/renderer.h"
@@ -50,6 +51,10 @@ class Playground {
 
   Point GetContentScale() const;
 
+  /// @brief Get the amount of time elapsed from the start of the playground's
+  /// execution.
+  Scalar GetSecondsElapsed() const;
+
   std::shared_ptr<Context> GetContext() const;
 
   bool OpenPlaygroundHere(const Renderer::RenderCallback& render_callback);
@@ -80,6 +85,8 @@ class Playground {
   static const bool is_enabled_ = false;
 #endif  // IMPELLER_ENABLE_PLAYGROUND
 
+  fml::TimeDelta start_time_;
+
   struct GLFWInitializer;
   std::unique_ptr<GLFWInitializer> glfw_initializer_;
   std::unique_ptr<PlaygroundImpl> impl_;

impeller/playground/playground_test.cc

@@ -25,8 +25,6 @@ void PlaygroundTest::SetUp() {
 
   SetupContext(GetParam());
   SetupWindow();
-
-  start_time_ = fml::TimePoint::Now().ToEpochDelta();
 }
 
 void PlaygroundTest::TearDown() {
@@ -63,8 +61,4 @@ std::string PlaygroundTest::GetWindowTitle() const {
   return FormatWindowTitle(flutter::testing::GetCurrentTestName());
 }
 
-Scalar PlaygroundTest::GetSecondsElapsed() const {
-  return (fml::TimePoint::Now().ToEpochDelta() - start_time_).ToSecondsF();
-}
-
 }  // namespace impeller

impeller/playground/playground_test.h

@@ -7,7 +7,6 @@
 #include <memory>
 
 #include "flutter/fml/macros.h"
-#include "flutter/fml/time/time_delta.h"
 #include "flutter/testing/testing.h"
 #include "impeller/geometry/scalar.h"
 #include "impeller/playground/playground.h"
@@ -35,13 +34,7 @@ class PlaygroundTest : public Playground,
   // |Playground|
   std::string GetWindowTitle() const override;
 
-  /// @brief Get the amount of time elapsed from the start of the playground
-  ///        test's execution.
-  Scalar GetSecondsElapsed() const;
-
  private:
-  fml::TimeDelta start_time_;
-
   FML_DISALLOW_COPY_AND_ASSIGN(PlaygroundTest);
 };