Remove include of stdlib.h from SkTypes.h.

Unfortunately, immintrin.h (which is also included by SkTypes)
includes xmmintrin.h which includes mm_malloc.h which includes
stdlib.h for malloc even though, from the implementation, it is
difficult to see why.

Fortunately, arm_neon.h does not seem to be involved in such
shenanigans, so building for Android will keep things sane.

TBR=reed@google.com
Doesn't change Skia API, just moves an include.

Review URL: https://codereview.chromium.org/1313203003
diff --git a/tests/PathOpsAngleTest.cpp b/tests/PathOpsAngleTest.cpp
index 9f9c321..cec8dde 100644
--- a/tests/PathOpsAngleTest.cpp
+++ b/tests/PathOpsAngleTest.cpp
@@ -51,7 +51,7 @@
                     float p2 = SkDoubleToScalar(line[1].fY * test.fX);
                     int p1Bits = SkFloatAs2sCompliment(p1);
                     int p2Bits = SkFloatAs2sCompliment(p2);
-                    int epsilon = abs(p1Bits - p2Bits);
+                    int epsilon = SkTAbs(p1Bits - p2Bits);
                     if (maxEpsilon < epsilon) {
                         SkDebugf("line={{0, 0}, {%1.7g, %1.7g}} t=%1.7g pt={%1.7g, %1.7g}"
                             " epsilon=%d\n",
@@ -104,7 +104,7 @@
         float p2 = SkDoubleToScalar(line[1].fY * last.fX);
         int p1Bits = SkFloatAs2sCompliment(p1);
         int p2Bits = SkFloatAs2sCompliment(p2);
-        int epsilon = abs(p1Bits - p2Bits);
+        int epsilon = SkTAbs(p1Bits - p2Bits);
         if (maxEpsilon < epsilon) {
             SkDebugf("line={{0, 0}, {%1.7g, %1.7g}} t=%1.7g/%1.7g/%1.7g moveT=%1.7g"
                     " pt={%1.7g, %1.7g} epsilon=%d\n",
diff --git a/tests/PathOpsCubicIntersectionTest.cpp b/tests/PathOpsCubicIntersectionTest.cpp
index 75a5cc3..d45ec06 100644
--- a/tests/PathOpsCubicIntersectionTest.cpp
+++ b/tests/PathOpsCubicIntersectionTest.cpp
@@ -12,6 +12,8 @@
 #include "SkReduceOrder.h"
 #include "Test.h"
 
+#include <stdlib.h>
+
 const int firstCubicIntersectionTest = 9;
 
 static void standardTestCases(skiatest::Reporter* reporter) {
diff --git a/tests/PathOpsExtendedTest.cpp b/tests/PathOpsExtendedTest.cpp
index d458c41..1401290 100644
--- a/tests/PathOpsExtendedTest.cpp
+++ b/tests/PathOpsExtendedTest.cpp
@@ -16,6 +16,8 @@
 #include "SkRTConf.h"
 #include "SkStream.h"
 
+#include <stdlib.h>
+
 #ifdef SK_BUILD_FOR_MAC
 #include <sys/sysctl.h>
 #endif
diff --git a/tests/PathOpsQuadLineIntersectionThreadedTest.cpp b/tests/PathOpsQuadLineIntersectionThreadedTest.cpp
index 7e33b7b..a4f87df 100644
--- a/tests/PathOpsQuadLineIntersectionThreadedTest.cpp
+++ b/tests/PathOpsQuadLineIntersectionThreadedTest.cpp
@@ -91,7 +91,7 @@
         SkDPoint xy = quad.ptAtT(tIndex / 4.0);
         for (int h = -2; h <= 2; ++h) {
             for (int v = -2; v <= 2; ++v) {
-                if (h == v && abs(h) != 1) {
+                if (h == v && SkTAbs(h) != 1) {
                     continue;
                 }
                 double x = xy.fX;
diff --git a/tests/PathOpsSkpClipTest.cpp b/tests/PathOpsSkpClipTest.cpp
index 6f3d014..95421fc 100755
--- a/tests/PathOpsSkpClipTest.cpp
+++ b/tests/PathOpsSkpClipTest.cpp
@@ -32,6 +32,8 @@
 #include "SkTemplates.h"
 #include "SkTime.h"
 
+#include <stdlib.h>
+
 __SK_FORCE_IMAGE_DECODER_LINKING;
 
 /* add local exceptions here */
diff --git a/tests/RTConfRegistryTest.cpp b/tests/RTConfRegistryTest.cpp
index 59fb3e9..84ce942 100644
--- a/tests/RTConfRegistryTest.cpp
+++ b/tests/RTConfRegistryTest.cpp
@@ -8,6 +8,8 @@
 #include "SkRTConf.h"
 #include "Test.h"
 
+#include <stdlib.h>
+
 // Friended proxy for SkRTConfRegistry::parse()
 template <typename T>
 bool test_rt_conf_parse(SkRTConfRegistry* reg, const char* key, T* value) {
diff --git a/tests/SortTest.cpp b/tests/SortTest.cpp
index e8713dd..d544ebd 100644
--- a/tests/SortTest.cpp
+++ b/tests/SortTest.cpp
@@ -9,6 +9,8 @@
 #include "SkTSort.h"
 #include "Test.h"
 
+#include <stdlib.h>
+
 extern "C" {
     static int compare_int(const void* a, const void* b) {
         return *(const int*)a - *(const int*)b;
diff --git a/tests/Time.cpp b/tests/Time.cpp
index 60dcd55..cf4f80f 100644
--- a/tests/Time.cpp
+++ b/tests/Time.cpp
@@ -44,7 +44,7 @@
 
     // The westernmost timezone is -12:00.
     // The easternmost timezone is +14:00.
-    REPORTER_ASSERT(r, abs(SkToInt(dateTime.fTimeZoneMinutes)) <= 14 * 60);
+    REPORTER_ASSERT(r, SkTAbs(SkToInt(dateTime.fTimeZoneMinutes)) <= 14 * 60);
 
     SkString timeStamp;
     dateTime.toISO8601(&timeStamp);