Bug 961958 - on Vista and above use SetProcessDPIAware in the installers so fonts aren't blurry on HDPI devices. r=bbondy

browser/installer/windows/nsis/installer.nsi

@@ -1048,6 +1048,10 @@ Function .onInit
 
   ${InstallOnInitCommon} "$(WARN_MIN_SUPPORTED_OS_MSG)"
 
+  ${If} ${AtLeastWinVista}
+    System::Call 'user32::SetProcessDPIAware()'
+  ${EndIf}
+
   !insertmacro InitInstallOptionsFile "options.ini"
   !insertmacro InitInstallOptionsFile "shortcuts.ini"
   !insertmacro InitInstallOptionsFile "components.ini"

browser/installer/windows/nsis/maintenanceservice_installer.nsi

@@ -132,6 +132,10 @@ Function un.onInit
   ; This only effects LoadLibrary calls and not implicitly loaded DLLs.
   System::Call 'kernel32::SetDllDirectoryW(w "")'
 
+  ${If} ${AtLeastWinVista}
+    System::Call 'user32::SetProcessDPIAware()'
+  ${EndIf}
+
   StrCpy $BrandFullNameDA "${MaintFullName}"
   StrCpy $BrandFullName "${MaintFullName}"
 FunctionEnd

browser/installer/windows/nsis/stub.nsi

@@ -336,6 +336,10 @@ Function .onInit
   ; Require elevation if the user can elevate
   ${ElevateUAC}
 
+  ${If} ${AtLeastWinVista}
+    System::Call 'user32::SetProcessDPIAware()'
+  ${EndIf}
+
   ; Create a mutex to prevent multiple launches of the same stub installer in
   ; the same location on the file system. This intentionally won't handle the
   ; case where someone runs multiple copies of the stub on the file system but

browser/installer/windows/nsis/uninstaller.nsi

@@ -685,6 +685,10 @@ Function un.onInit
 
   ${un.UninstallUnOnInitCommon}
 
+  ${If} ${AtLeastWinVista}
+    System::Call 'user32::SetProcessDPIAware()'
+  ${EndIf}
+
   !insertmacro InitInstallOptionsFile "unconfirm.ini"
 FunctionEnd