Move mimetype definitions to plugin specs

- Avoids the hassle of QRC files and manually registering mime types
- Avoids performance regressions because of mime types that are
  registered after mime database has been used
- Makes it technically possible to detect that a disabled plugin could
  handle a mime type if it was enabled

Change-Id: I373008b1b56e9c6b4853055f20b3eeb112a6eff9
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/plugins/cmakeprojectmanager/CMakeProjectManager.json.in

@@ -15,5 +15,21 @@
     \"Category\" : \"Build Systems\",
     \"Description\" : \"CMake support.\",
     \"Url\" : \"http://www.qt.io\",
-    $$dependencyList
+    $$dependencyList,
+
+    \"Mimetypes\" : \"
+    <?xml version=\'1.0\'?>
+    <mime-info xmlns=\'http://www.freedesktop.org/standards/shared-mime-info\'>
+      <mime-type type=\'text/x-cmake\'>
+        <sub-class-of type=\'text/plain\'/>
+        <comment>CMake Project file</comment>
+        <glob pattern=\'*.cmake\'/>
+      </mime-type>
+      <mime-type type=\'text/x-cmake-project\'>
+        <sub-class-of type=\'text/x-cmake\'/>
+        <comment>CMake Project file</comment>
+        <glob pattern=\'CMakeLists.txt\'/>
+      </mime-type>
+    </mime-info>
+    \"
 }

src/plugins/cmakeprojectmanager/CMakeProjectManager.mimetypes.xml

@@ -1,13 +0,0 @@
-<?xml version="1.0"?>
-<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
-  <mime-type type="text/x-cmake">
-    <sub-class-of type="text/plain"/>
-    <comment>CMake Project file</comment>
-    <glob pattern="*.cmake"/>
-  </mime-type>
-  <mime-type type="text/x-cmake-project">
-    <sub-class-of type="text/x-cmake"/>
-    <comment>CMake Project file</comment>
-    <glob pattern="CMakeLists.txt"/>
-  </mime-type>
-</mime-info>

src/plugins/cmakeprojectmanager/cmakeproject.qrc

@@ -1,6 +1,5 @@
 <RCC>
     <qresource prefix="/cmakeproject">
-        <file>CMakeProjectManager.mimetypes.xml</file>
         <file>images/fileoverlay_cmake.png</file>
         <file>images/fileoverlay_cmake@2x.png</file>
     </qresource>

src/plugins/cmakeprojectmanager/cmakeprojectplugin.cpp

@@ -47,7 +47,6 @@
 #include <projectexplorer/kitmanager.h>
 #include <projectexplorer/projecttree.h>
 
-#include <utils/mimetypes/mimedatabase.h>
 #include <utils/parameteraction.h>
 
 using namespace CMakeProjectManager::Internal;
@@ -59,8 +58,6 @@ bool CMakeProjectPlugin::initialize(const QStringList & /*arguments*/, QString *
     Q_UNUSED(errorMessage)
     const Context projectContext(Constants::PROJECTCONTEXT);
 
-    Utils::MimeDatabase::addMimeTypes(QLatin1String(":cmakeproject/CMakeProjectManager.mimetypes.xml"));
-
     Core::FileIconProvider::registerIconOverlayForSuffix(Constants::FILEOVERLAY_CMAKE, "cmake");
     Core::FileIconProvider::registerIconOverlayForFilename(Constants::FILEOVERLAY_CMAKE, "CMakeLists.txt");