Remove runtime toggling of throttling frames

cc/trees/threaded_channel_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/trees/threaded_channel.h"
 
 #include "base/macros.h"
 #include "cc/animation/animation_events.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/trees/single_thread_proxy.h"
@@ skipping 55 matching lines @@
   }
 
   void FinishGLOnImpl() override { calls_received_++; }
 
   void AfterTest() override { EXPECT_EQ(6, calls_received_); }
 };
 
 MULTI_THREAD_DIRECT_RENDERER_TEST_F(
     ThreadedChannelTestInitializationAndShutdown);
 
-class ThreadedChannelTestThrottleFrameProduction : public ThreadedChannelTest {
-  void BeginChannelTest() override {
-    proxy()->SetThrottleFrameProduction(true);
-  }
-
-  void SetThrottleFrameProductionOnImpl(bool throttle) override {
-    ASSERT_TRUE(throttle);
-    calls_received_++;
-    EndTest();
-  }
-
-  void AfterTest() override { EXPECT_EQ(1, calls_received_); }
-};
-
-MULTI_THREAD_DIRECT_RENDERER_TEST_F(ThreadedChannelTestThrottleFrameProduction);
-
 class ThreadedChannelTestTopControlsState : public ThreadedChannelTest {
   void BeginChannelTest() override {
     proxy()->UpdateTopControlsState(TopControlsState::BOTH,
                                     TopControlsState::BOTH, true);
   }
 
   void UpdateTopControlsStateOnImpl(TopControlsState constraints,
                                     TopControlsState current,
                                     bool animate) override {
     calls_received_++;
@@ skipping 200 matching lines @@
     calls_received_++;
     EndTest();
   }
 
   void AfterTest() override { EXPECT_EQ(1, calls_received_); }
 };
 
 MULTI_THREAD_DIRECT_RENDERER_TEST_F(ThreadedChannelTestPageScaleAnimation);
 
 }  // namespace cc