Update bots so they use iOS10 SDK

Xcode 8 should be installed upstream already, so in order to land
changes than use iOS10 SDK we need to update the bots.

BUG=none

Review-Url: https://codereview.chromium.org/2347943002
Cr-Commit-Position: refs/heads/master@{#419324}

ios/build/bots/chromium.mac/ios-device-gn.json

@@ -7,7 +7,7 @@
     "Builder for 32-bit devices.",
     "Build is performed with gn+ninja."
   ],
-  "xcode version": "7.0",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -27,7 +27,7 @@
   "compiler": "ninja",
   "additional_compile_targets": ["gn_all"],
   "configuration": "Release",
-  "sdk": "iphoneos9.0",
+  "sdk": "iphoneos10.0",
   "tests": [
   ]
 }

ios/build/bots/chromium.mac/ios-device.json

@@ -7,7 +7,7 @@
     "Builder for 32-bit devices.",
     "Build is performed with gn+ninja."
   ],
-  "xcode version": "7.0",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -30,7 +30,7 @@
   "compiler": "ninja",
   "additional_compile_targets": [ "gn_all" ],
   "configuration": "Release",
-  "sdk": "iphoneos9.0",
+  "sdk": "iphoneos10.0",
   "tests": [
   ]
 }

ios/build/bots/chromium.mac/ios-simulator-cronet.json

@@ -6,7 +6,7 @@
     "Cronet tests for 32- and 64-bit iOS 9.0 simulators.",
     "Tests run on iPhone 5s (64-bit) and iPad Retina (32-bit)."
   ],
-  "xcode version": "7.3",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -37,7 +37,7 @@
   "compiler": "ninja",
   "additional_compiler_targets": [ "gn_all" ],
   "configuration": "Debug",
-  "sdk": "iphonesimulator9.3",
+  "sdk": "iphonesimulator10.0",
   "tests": [
     {
       "app": "cronet_test",

ios/build/bots/chromium.mac/ios-simulator-gn.json

@@ -8,7 +8,7 @@
     "Tests run on iPhone 5s (64-bit) and iPad Retina (32-bit).",
     "Build is performed with gn+ninja."
   ],
-  "xcode version": "7.0",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -31,7 +31,7 @@
   "compiler": "ninja",
   "additional_compile_targets": ["gn_all"],
   "configuration": "Debug",
-  "sdk": "iphonesimulator9.0",
+  "sdk": "iphonesimulator10.0",
   "tests": [
     {
       "include": "common_tests.json",

ios/build/bots/chromium.mac/ios-simulator-swarming.json

@@ -8,7 +8,7 @@
     "Tests run on iPhone 5s (64-bit) and iPad Retina (32-bit).",
     "Build is performed with gn+ninja."
   ],
-  "xcode version": "7.0",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -31,7 +31,7 @@
   "compiler": "ninja",
   "additional_compile_targets": ["gn_all"],
   "configuration": "Debug",
-  "sdk": "iphonesimulator9.0",
+  "sdk": "iphonesimulator10.0",
   "tests": [
     {
       "include": "common_tests.json",

ios/build/bots/chromium.mac/ios-simulator.json

@@ -8,7 +8,7 @@
     "Tests run on iPhone 5s (64-bit) and iPad Retina (32-bit).",
     "Build is performed with gn+ninja."
   ],
-  "xcode version": "7.0",
+  "xcode version": "8.0",
   "GYP_DEFINES": [
     "OS=ios",
     "chromium_ios_signing=0",
@@ -30,7 +30,7 @@
   "mb_type": "gn",
   "compiler": "ninja",
   "configuration": "Debug",
-  "sdk": "iphonesimulator9.0",
+  "sdk": "iphonesimulator10.0",
   "tests": [
     {
       "include": "common_tests.json",