Revert of IWYU: 'core' target, files starting A-C. (patchset #5 id:80001 of https://codereview.chromium.org/1265033002/ )

Reason for revert:
revert to unblock DEPS roll

../../chrome/browser/chromeos/display/overscan_calibrator.cc:43:10: error: variable has incomplete type 'SkPath'
  SkPath base_path;

Original issue's description:
> IWYU: 'core' target, files starting A-C.
>
> TBR=reed@google.com
> Verbal lgtm, does not change API.
>
> Committed: https://skia.googlesource.com/skia/+/7403d87db8e43d4c2b5b25ac22a0ebc22bd09d69

TBR=reed@google.com,mtklein@google.com,bungeman@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1273613002
diff --git a/samplecode/SampleAAClip.cpp b/samplecode/SampleAAClip.cpp
index 78baf3d..a1ee67b 100644
--- a/samplecode/SampleAAClip.cpp
+++ b/samplecode/SampleAAClip.cpp
@@ -7,10 +7,9 @@
  */
 
 #include "SampleCode.h"
-#include "SkAAClip.h"
-#include "SkCanvas.h"
-#include "SkPath.h"
 #include "SkView.h"
+#include "SkCanvas.h"
+#include "SkAAClip.h"
 
 static void testop(const SkIRect& r0, const SkIRect& r1, SkRegion::Op op,
                    const SkIRect& expectedR) {
diff --git a/samplecode/SampleChart.cpp b/samplecode/SampleChart.cpp
index 8d158f1..4c128a9 100644
--- a/samplecode/SampleChart.cpp
+++ b/samplecode/SampleChart.cpp
@@ -8,7 +8,6 @@
 #include "SampleCode.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
-#include "SkPath.h"
 #include "SkRandom.h"
 #include "SkView.h"
 
diff --git a/samplecode/SampleCircle.cpp b/samplecode/SampleCircle.cpp
index 938b575..9cc927e 100644
--- a/samplecode/SampleCircle.cpp
+++ b/samplecode/SampleCircle.cpp
@@ -1,16 +1,15 @@
+
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
 #include "SampleCode.h"
+#include "SkView.h"
 #include "SkCanvas.h"
 #include "SkDevice.h"
 #include "SkPaint.h"
-#include "SkPath.h"
-#include "SkView.h"
 
 // ensure that we don't accidentally screw up the bounds when the oval is
 // fractional, and the impl computes the center and radii, and uses them to
diff --git a/samplecode/SampleClip.cpp b/samplecode/SampleClip.cpp
index 2014278..3a38724 100644
--- a/samplecode/SampleClip.cpp
+++ b/samplecode/SampleClip.cpp
@@ -11,7 +11,6 @@
 #include "SkColorPriv.h"
 #include "SkDevice.h"
 #include "SkPaint.h"
-#include "SkPath.h"
 #include "SkRandom.h"
 
 #define W   150
diff --git a/samplecode/SampleClipDrawMatch.cpp b/samplecode/SampleClipDrawMatch.cpp
index c79c872..6a2a37b 100644
--- a/samplecode/SampleClipDrawMatch.cpp
+++ b/samplecode/SampleClipDrawMatch.cpp
@@ -8,8 +8,6 @@
 #include "SampleCode.h"
 #include "SkCanvas.h"
 #include "SkInterpolator.h"
-#include "SkPath.h"
-#include "SkRRect.h"
 #include "SkTime.h"
 
 // This slide tests out the match up between BW clipping and rendering. It can
diff --git a/samplecode/SampleClock.cpp b/samplecode/SampleClock.cpp
index 9b1e3e0..ec71f0f 100644
--- a/samplecode/SampleClock.cpp
+++ b/samplecode/SampleClock.cpp
@@ -7,7 +7,6 @@
 #include "SampleCode.h"
 
 #include "SkCanvas.h"
-#include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRRect.h"
 #include "SkTime.h"
diff --git a/samplecode/SampleDitherBitmap.cpp b/samplecode/SampleDitherBitmap.cpp
index 9af5ce5..d825c71 100644
--- a/samplecode/SampleDitherBitmap.cpp
+++ b/samplecode/SampleDitherBitmap.cpp
@@ -1,17 +1,16 @@
+
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
 #include "SampleCode.h"
-#include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkGradientShader.h"
-#include "SkPath.h"
-#include "SkUtils.h"
 #include "SkView.h"
+#include "SkCanvas.h"
+#include "SkUtils.h"
 
 static void draw_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) {
     canvas->drawRect(r, p);
diff --git a/samplecode/SampleEmptyPath.cpp b/samplecode/SampleEmptyPath.cpp
index 6071f42..53e2199 100644
--- a/samplecode/SampleEmptyPath.cpp
+++ b/samplecode/SampleEmptyPath.cpp
@@ -1,15 +1,14 @@
+
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
-#include "SkPath.h"
 #include "SkRandom.h"
 #include "SkString.h"
 
diff --git a/samplecode/SampleFilterQuality.cpp b/samplecode/SampleFilterQuality.cpp
index 12a04a6..64b7f55 100644
--- a/samplecode/SampleFilterQuality.cpp
+++ b/samplecode/SampleFilterQuality.cpp
@@ -12,7 +12,6 @@
 #include "SkAnimTimer.h"
 #include "SkCanvas.h"
 #include "SkInterpolator.h"
-#include "SkPath.h"
 #include "SkSurface.h"
 #include "SkRandom.h"
 #include "SkTime.h"
diff --git a/samplecode/SampleIdentityScale.cpp b/samplecode/SampleIdentityScale.cpp
index 3302d27..4450d61 100644
--- a/samplecode/SampleIdentityScale.cpp
+++ b/samplecode/SampleIdentityScale.cpp
@@ -13,7 +13,6 @@
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkImageDecoder.h"
-#include "SkPath.h"
 #include "SkRandom.h"
 #include "SkStream.h"
 #include "SkTime.h"
diff --git a/samplecode/SampleLayerMask.cpp b/samplecode/SampleLayerMask.cpp
index f5b8822..86a092c 100644
--- a/samplecode/SampleLayerMask.cpp
+++ b/samplecode/SampleLayerMask.cpp
@@ -1,14 +1,13 @@
+
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
 #include "SampleCode.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
-#include "SkPath.h"
 #include "SkView.h"
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/samplecode/SamplePathFuzz.cpp b/samplecode/SamplePathFuzz.cpp
index 70a052f..0955ce9 100644
--- a/samplecode/SamplePathFuzz.cpp
+++ b/samplecode/SamplePathFuzz.cpp
@@ -14,7 +14,6 @@
 #include "SkColor.h"
 #include "SkTDArray.h"
 #include "SkRandom.h"
-#include "SkRRect.h"
 
 enum RandomAddPath {
     kMoveToPath,
diff --git a/samplecode/SampleShaderText.cpp b/samplecode/SampleShaderText.cpp
index cf7cf96..9fdae84 100644
--- a/samplecode/SampleShaderText.cpp
+++ b/samplecode/SampleShaderText.cpp
@@ -6,10 +6,9 @@
  */
 
 #include "SampleCode.h"
+#include "SkView.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
-#include "SkPath.h"
-#include "SkView.h"
 
 static void makebm(SkBitmap* bm, int w, int h) {
     bm->allocN32Pixels(w, h);
diff --git a/samplecode/SampleStringArt.cpp b/samplecode/SampleStringArt.cpp
index 5bc667b..0e711b0 100644
--- a/samplecode/SampleStringArt.cpp
+++ b/samplecode/SampleStringArt.cpp
@@ -4,10 +4,8 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
-
 #include "SampleCode.h"
 #include "SkCanvas.h"
-#include "SkPath.h"
 
 // Reproduces https://code.google.com/p/chromium/issues/detail?id=279014