Switch to client-based Geolocation

The motivation for this switch is that it is required to enable
PREEMPT_GEOLOCATION_PERMISSION. See b/4500947.

The switch involves changing lots of Android's WebKit plumbing to use a new
GeolocationClientAndroid in WebKit (called from
WebCore::GeolocationController), rather than the existing
GeolocationServiceAndroid in WebCore/platform (called from
WebCore::Geolocation). This is complicated by the need to support mocking for
LayoutTests.

The pattern used is very similar to that used for DeviceOrientation and
DeviceMotion. This patch ...
- Enables CLIENT_BASED_GEOLOCATION
- Leaves PREEMPT_GEOLOCATION_PERMISSION disabled for now
- Removes GeolocationServiceAndroid
- Adds a new GeolocationClientAndroid
  - Just a proxy to real client
- Adds a new GeolocationManager
  - Manages switching between the real and mock clients
  - Provides the appropriate client to GeolocationClientAndroid
  - Plumbs to the real client calls for permissions and for suspending/resuming
- Adds a new GeolocationClientImpl
  - The real client
  - Based heavily on GeolocationServiceAndroid
  - Delegates to GeolocationServiceBridge, as GeolocationServiceAndroid did
  - Calls back directly to GeolocationController
  - Owns the existing GeolocationPermissions
- Updates WebViewCore to call the GeolocationManager for permissions and for
  suspending/resuming
- Removes superfluous ChromeClient methods for permissions

Note that support for mocking will be added in a later change. See bug for
details.

Bug: 6511338
Change-Id: I4cdbf55846e76b37c161834b83135b4dc48dbcdc

1 files changed, 71 insertions, 0 deletions

diff --git a/Source/WebKit/android/WebCoreSupport/GeolocationManager.h b/Source/WebKit/android/WebCoreSupport/GeolocationManager.h
new file mode 100644
index 0000000..707cf6f
--- /dev/null
+++ b/Source/WebKit/android/WebCoreSupport/GeolocationManager.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef GeolocationManager_h
+#define GeolocationManager_h
+
+#include "GeolocationClientImpl.h"
+
+#include <OwnPtr.h>
+#include <PassRefPtr.h>
+
+namespace WebCore {
+class GeolocationError;
+class GeolocationPosition;
+}
+
+namespace android {
+
+class GeolocationClientImpl;
+class WebViewCore;
+
+// This class takes care of the fact that the client used for Geolocation
+// may be either the real implementation or a mock. It also handles setting the
+// data on the mock client. This class is owned by WebViewCore and exists to
+// keep cruft out of that class.
+// TODO: Add support for mock. See b/6511338.
+class GeolocationManager {
+public:
+    GeolocationManager(WebViewCore*);
+
+    // For use by GeolocationClientAndroid. Gets the current client, either the
+    // real or mock.
+    WebCore::GeolocationClient* client() const;
+
+    void suspendRealClient();
+    void resumeRealClient();
+    void resetRealClientTemporaryPermissionStates();
+    void provideRealClientPermissionState(WTF::String origin, bool allow, bool remember);
+
+private:
+    GeolocationClientImpl* realClient() const;
+
+    WebViewCore* m_webViewCore;
+    mutable OwnPtr<GeolocationClientImpl> m_realClient;
+};
+
+} // namespace android
+
+#endif // GeolocationManager_h