remove unnecessary bitmapdevice references

TBR=

Author: reed@google.com

Review URL: https://codereview.chromium.org/354143004
diff --git a/bench/BlurImageFilterBench.cpp b/bench/BlurImageFilterBench.cpp
index 786611b..4e8688d 100644
--- a/bench/BlurImageFilterBench.cpp
+++ b/bench/BlurImageFilterBench.cpp
@@ -6,7 +6,6 @@
  */
 
 #include "Benchmark.h"
-#include "SkBitmapDevice.h"
 #include "SkBlurImageFilter.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
diff --git a/bench/DisplacementBench.cpp b/bench/DisplacementBench.cpp
index 881ba33..2a0f7c0 100644
--- a/bench/DisplacementBench.cpp
+++ b/bench/DisplacementBench.cpp
@@ -4,8 +4,8 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 #include "Benchmark.h"
-#include "SkBitmapDevice.h"
 #include "SkBitmapSource.h"
 #include "SkCanvas.h"
 #include "SkDisplacementMapEffect.h"
diff --git a/bench/MagnifierBench.cpp b/bench/MagnifierBench.cpp
index 875ec4f..c47dcdc 100644
--- a/bench/MagnifierBench.cpp
+++ b/bench/MagnifierBench.cpp
@@ -4,8 +4,8 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 #include "Benchmark.h"
-#include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkRandom.h"
diff --git a/bench/MergeBench.cpp b/bench/MergeBench.cpp
index a6bb3ac..2e1ca32 100644
--- a/bench/MergeBench.cpp
+++ b/bench/MergeBench.cpp
@@ -4,8 +4,8 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+
 #include "Benchmark.h"
-#include "SkBitmapDevice.h"
 #include "SkBitmapSource.h"
 #include "SkCanvas.h"
 #include "SkMergeImageFilter.h"
diff --git a/bench/benchmain.cpp b/bench/benchmain.cpp
index 2a071be..e097fe0 100644
--- a/bench/benchmain.cpp
+++ b/bench/benchmain.cpp
@@ -10,7 +10,6 @@
 #include "CrashHandler.h"
 #include "GMBench.h"
 #include "ResultsWriter.h"
-#include "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkCommandLineFlags.h"
@@ -29,7 +28,6 @@
 #include "GrContext.h"
 #include "GrContextFactory.h"
 #include "GrRenderTarget.h"
-#include "SkGpuDevice.h"
 #include "gl/GrGLDefines.h"
 #else
 class GrContext;