[Mono.Android] Android API-26 Binding (aka API-O preview 3) (#642)

Context: https://arstechnica.com/gadgets/2017/06/android-o-developer-preview-3-launches-finalizes-apis/
Context: https://arstechnica.com/gadgets/2017/06/hands-on-android-o-preview-3-is-8-0-has-a-sweet-colored-media-notification/

Google has declared that API-O Preview 3 is API-26/v8.0.
Rename api-O.xml.in to api-26.xml.in, and update names accordingly.

metadata fixup needs no change, though I have some other fixes (which I
have been waiting for java.interop PR being merged).

Author: atsushieno

build-tools/android-toolchain/android-toolchain.projitems

@@ -15,7 +15,7 @@
       <HostOS>Linux</HostOS>
       <DestDir>build-tools\$(XABuildToolsFolder)</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="platform-tools_r26.0.0-rc2-linux.zip">
+    <AndroidSdkItem Include="platform-tools_r26.0.0-linux.zip">
       <HostOS>Linux</HostOS>
       <DestDir>platform-tools</DestDir>
     </AndroidSdkItem>
@@ -34,7 +34,7 @@
       <HostOS>Darwin</HostOS>
       <DestDir>build-tools\$(XABuildToolsFolder)</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="platform-tools_r26.0.0-rc2-darwin.zip">
+    <AndroidSdkItem Include="platform-tools_r26.0.0-darwin.zip">
       <HostOS>Darwin</HostOS>
       <DestDir>platform-tools</DestDir>
     </AndroidSdkItem>
@@ -82,21 +82,21 @@
       <HostOS></HostOS>
       <DestDir>platforms\android-22</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="android-23_r01.zip">
+    <AndroidSdkItem Include="platform-23_r03.zip">
       <HostOS></HostOS>
       <DestDir>platforms\android-23</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="platform-24_r01.zip">
+    <AndroidSdkItem Include="platform-24_r02.zip">
       <HostOS></HostOS>
       <DestDir>platforms\android-24</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="platform-25_r01.zip">
+    <AndroidSdkItem Include="platform-25_r03.zip">
       <HostOS></HostOS>
       <DestDir>platforms\android-25</DestDir>
     </AndroidSdkItem>
-    <AndroidSdkItem Include="platform-O_r02.zip">
+    <AndroidSdkItem Include="platform-26_r01.zip">
       <HostOS></HostOS>
-      <DestDir>platforms\android-O</DestDir>
+      <DestDir>platforms\android-26</DestDir>
     </AndroidSdkItem>
     <AndroidSdkItem Include="docs-24_r01.zip">
       <HostOS></HostOS>

build-tools/api-xml-adjuster/Makefile

@@ -14,7 +14,7 @@ API_XML_TOOL = $(BUILDBIN)/api-xml-adjuster.exe
 RUNTIME = mono
 RUN_CLASS_PARSE = $(RUNTIME) $(CLASS_PARSE)
 RUN_API_XML_TOOL = $(RUNTIME) $(API_XML_TOOL)
-API_LEVELS = 10 15 16 17 18 19 20 21 22 23 24 25 O
+API_LEVELS = 10 15 16 17 18 19 20 21 22 23 24 25 26
 
 XML_OUTPUT_DIR = .
 
@@ -72,6 +72,7 @@ DOCS_DIR_CUR_LEVEL: $(DOCS_DIR_CUR_LEVEL)
 # download and setup docs directory for each API profile
 
 define extract-docs
+	rm -rf $(DOCS_DIR)/$@
 	mkdir -p $(DOCS_DIR)
 	unzip $1 || exit 1
 	mv $2 $@
@@ -81,10 +82,10 @@ docs-%.zip:
 	curl -L http://dl-ssl.google.com/android/repository/$@ > $@ || exit 1
 
 docs-25_web.zip:
-	curl -L https://dl.dropboxusercontent.com/u/493047/2016/docs-25-web.zip > $@ || exit 1
+	curl -L https://www.dropbox.com/s/x3e5e05ustyk9jb/docs-25_web.zip?dl=0 > $@ || exit 1
 
 docs-O_web.zip:
-	curl -L https://www.dropbox.com/s/35sty6h7oszc488/docs-api-O.zip?dl=0 > $@ || exit 1
+	curl -L https://www.dropbox.com/s/8gsnkv376ylovzf/docs-api-O.zip?dl=0 > $@ || exit 1
 
 # API level 10 is Android v2.3.3; it's API level 9 (Android v2.3) with a few
 # bugfixes which don't impact the documentation.
@@ -125,6 +126,6 @@ $(DOCS_DIR)/docs-api-24: docs-24_r01.zip
 $(DOCS_DIR)/docs-api-25: docs-25_web.zip	# Google hadn't published docs component yet!
 	$(call extract-docs,$<,docs)
 
-$(DOCS_DIR)/docs-api-O: docs-O_web.zip	# No preview docs yet
+$(DOCS_DIR)/docs-api-26: docs-O_web.zip	# No preview docs yet
 	$(call extract-docs,$<,docs)
 

build-tools/scripts/BuildEverything.mk

@@ -19,9 +19,9 @@ ZIP_OUTPUT            = $(ZIP_OUTPUT_BASENAME).zip
 # $(ALL_API_LEVELS) and $(ALL_FRAMEWORKS) must be kept in sync w/ each other
 ALL_API_LEVELS    = 1 2 3 4 5 6 7 8 9 10    11  12  13  14  15      16    17    18    19    20        21    22    23    24    25    26
 # this was different from ALL_API_LEVELS when API Level 26 was "O". Same could happen in the future.
-ALL_PLATFORM_IDS  = 1 2 3 4 5 6 7 8 9 10    11  12  13  14  15      16    17    18    19    20        21    22    23    24    25    O
+ALL_PLATFORM_IDS  = 1 2 3 4 5 6 7 8 9 10    11  12  13  14  15      16    17    18    19    20        21    22    23    24    25    26
 # supported api levels
-ALL_FRAMEWORKS    = _ _ _ _ _ _ _ _ _ v2.3  _   _   _   _   v4.0.3  v4.1  v4.2  v4.3  v4.4  v4.4.87   v5.0  v5.1  v6.0  v7.0  v7.1  v7.99.0
+ALL_FRAMEWORKS    = _ _ _ _ _ _ _ _ _ v2.3  _   _   _   _   v4.0.3  v4.1  v4.2  v4.3  v4.4  v4.4.87   v5.0  v5.1  v6.0  v7.0  v7.1  v8.0
 API_LEVELS        =                   10                    15      16    17    18    19    20        21    22    23    24    25    26
 STABLE_API_LEVELS =                   10                    15      16    17    18    19    20        21    22    23    24