header: Update to 1.0.44 Vulkan version

- updated include/vulkan/vulkan.h
- updated scripts/generator.py
- updated scripts/vk.xml
- updated layers json files
- updated tests json files
- updated include/vulkan/vulkan.hpp

Change-Id: I1d18921f75ec74484918be6cfdba394fc397d2f5
diff --git a/scripts/generator.py b/scripts/generator.py
index 709ac14..e729b17 100755
--- a/scripts/generator.py
+++ b/scripts/generator.py
@@ -14,13 +14,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import unicode_literals
 import io,os,re,sys
 
 def write( *args, **kwargs ):
-    file = kwargs.pop(u'file',sys.stdout)
-    end = kwargs.pop( u'end',u'\n')
-    file.write( u' '.join([str(arg) for arg in args]) )
-    file.write( end )
+    file = kwargs.pop('file',sys.stdout)
+    end = kwargs.pop('end','\n')
+    file.write(' '.join([str(arg) for arg in args]))
+    file.write(end)
 
 # noneStr - returns string argument, or "" if argument is None.
 # Used in converting etree Elements into text.
diff --git a/scripts/vk.xml b/scripts/vk.xml
index 54f5797..50cacce 100644
--- a/scripts/vk.xml
+++ b/scripts/vk.xml
@@ -112,7 +112,7 @@
         <type category="define">// Vulkan 1.0 version number
 #define <name>VK_API_VERSION_1_0</name> <type>VK_MAKE_VERSION</type>(1, 0, 0)</type>    <!-- The patch version here should never be set to anything other than 0 -->
         <type category="define">// Version of this file
-#define <name>VK_HEADER_VERSION</name> 43</type>
+#define <name>VK_HEADER_VERSION</name> 44</type>
 
         <type category="define">
 #define <name>VK_DEFINE_HANDLE</name>(object) typedef struct object##_T* object;</type>
@@ -1474,7 +1474,7 @@
         </type>
         <type category="struct" name="VkDisplayPresentInfoKHR">
             <member values="VK_STRUCTURE_TYPE_DISPLAY_PRESENT_INFO_KHR"><type>VkStructureType</type> <name>sType</name></member>
-            <member validextensionstructs="VkPresentTimesInfoGOOGLE">const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
+            <member validextensionstructs="VkDeviceGroupPresentInfoKHX,VkPresentTimesInfoGOOGLE">const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
             <member><type>VkRect2D</type>                         <name>srcRect</name></member>                  <!-- Rectangle within the presentable image to read pixel data from when presenting to the display. -->
             <member><type>VkRect2D</type>                         <name>dstRect</name></member>                  <!-- Rectangle within the current display mode's visible region to display srcRectangle in. -->
             <member><type>VkBool32</type>                         <name>persistent</name></member>               <!-- For smart displays, use buffered mode.  If the display properties member "persistentMode" is VK_FALSE, this member must always be VK_FALSE. -->
@@ -2108,7 +2108,7 @@
         </type>
         <type category="struct" name="VkDeviceGroupPresentInfoKHX">
             <member values="VK_STRUCTURE_TYPE_DEVICE_GROUP_PRESENT_INFO_KHX"><type>VkStructureType</type> <name>sType</name></member>
-            <member>const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
+            <member validextensionstructs="VkDisplayPresentInfoKHR,VkPresentTimesInfoGOOGLE">const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
             <member optional="true"><type>uint32_t</type>         <name>swapchainCount</name></member>
             <member len="swapchainCount">const <type>uint32_t</type>* <name>pDeviceMasks</name></member>
             <member><type>VkDeviceGroupPresentModeFlagBitsKHX</type> <name>mode</name></member>
@@ -2176,7 +2176,7 @@
         </type>
         <type category="struct" name="VkPresentTimesInfoGOOGLE">
             <member values="VK_STRUCTURE_TYPE_PRESENT_TIMES_INFO_GOOGLE"><type>VkStructureType</type> <name>sType</name></member>
-            <member validextensionstructs="VkDisplayPresentInfoKHR">const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
+            <member validextensionstructs="VkDisplayPresentInfoKHR,VkDeviceGroupPresentInfoKHX">const <type>void</type>*  <name>pNext</name></member> <!-- Pointer to next structure -->
             <member><type>uint32_t</type>                         <name>swapchainCount</name></member>           <!-- Copy of VkPresentInfoKHR::swapchainCount -->
             <member len="swapchainCount" optional="true">const <type>VkPresentTimeGOOGLE</type>*   <name>pTimes</name></member> <!-- The earliest times to present images -->
         </type>
@@ -5678,9 +5678,6 @@
                 <enum offset="2" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_BUFFER_INFO_KHX"/>
                 <enum offset="3" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_EXTERNAL_BUFFER_PROPERTIES_KHX"/>
                 <enum offset="4" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES_KHX"/>
-                <enum offset="5" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2_KHX"/> <!-- KHX-only.  Remove for KHR -->
-                <enum offset="6" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2_KHX"/> <!-- KHX-only.  Remove for KHR -->
-                <enum offset="7" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2_KHX"/> <!-- KHX-only.  Remove for KHR -->
                 <enum name="VK_LUID_SIZE_KHX"/>
                 <type name="VkExternalMemoryHandleTypeFlagsKHX"/>
                 <type name="VkExternalMemoryHandleTypeFlagBitsKHX"/>
@@ -6061,7 +6058,7 @@
         </extension>
         <extension name="VK_EXT_hdr_metadata" number="106" type="device" author="GOOGLE" contact="Courtney Goeltzenleuchter @courtneygo" supported="vulkan">
             <require>
-                <enum value="0"                                         name="VK_EXT_HDR_METADATA_SPEC_VERSION"/>
+                <enum value="1"                                         name="VK_EXT_HDR_METADATA_SPEC_VERSION"/>
                 <enum value="&quot;VK_EXT_hdr_metadata&quot;"           name="VK_EXT_HDR_METADATA_EXTENSION_NAME"/>
                 <enum offset="0" extends="VkStructureType"              name="VK_STRUCTURE_TYPE_HDR_METADATA_EXT"/>
                 <type name="VkHdrMetadataEXT"/>
@@ -6209,10 +6206,10 @@
                 <enum value="&quot;VK_KHR_extension_128&quot;"          name="VK_KHR_EXTENSION_128_EXTENSION_NAME"/>
             </require>
         </extension>
-        <extension name="VK_EXT_extension_129" number="129" author="LUNARG" contact="Mark Young @MarkY_LunarG" supported="disabled">
+        <extension name="VK_KHR_extension_129" number="129" type="instance" author="EXT" contact="Mark Young @MarkY_LunarG" supported="disabled">
             <require>
                 <enum value="0"                                         name="VK_KHR_EXTENSION_129_SPEC_VERSION"/>
-                <enum value="&quot;VK_EXT_extension_129&quot;"          name="VK_KHR_EXTENSION_129_EXTENSION_NAME"/>
+                <enum value="&quot;VK_KHR_extension_129&quot;"          name="VK_KHR_EXTENSION_129_EXTENSION_NAME"/>
             </require>
         </extension>
         <extension name="VK_KHR_extension_130" number="130" author="KHR" contact="Jesse Hall @jessehall" supported="disabled">
@@ -6221,5 +6218,11 @@
                 <enum value="&quot;VK_KHR_extension_130&quot;"          name="VK_KHR_EXTENSION_130_EXTENSION_NAME"/>
             </require>
         </extension>
+        <extension name="VK_KHR_extension_131" number="131" author="KHR" contact="Jeff Bolz @jbolz" supported="disabled">
+            <require>
+                <enum value="0"                                         name="VK_KHR_EXTENSION_131_SPEC_VERSION"/>
+                <enum value="&quot;VK_KHR_extension_131&quot;"          name="VK_KHR_EXTENSION_131_EXTENSION_NAME"/>
+            </require>
+        </extension>
     </extensions>
 </registry>