User Gesture plumbed from Renderer to Browser's FullscreenController::RequestToLockMouse.

Part of a larger set of patches refactoring FullscreenController to support mouse lock in windowed (not fullscreen) mode.

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BUG=107320

Review URL: https://chromiumcodereview.appspot.com/10173030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134113 0039d316-1c4b-4281-b951-d872f2087c98
15 files changed