Specifically, this section:

"According to the filing, Google and Motorola began discussions about Motorola's patent portfolio in early July, as well as the "intellectual property litigation and the potential impact of such litigation on the Android ecosystem".

Although the two companies discussed the possibility of an acquisition after the initial contact by Mr. Rubin, it was only after Motorola pushed back on the idea of patent sale that the acquisition talks picked up steam.

The turning point came during a meeting on July 6. At the meeting, Motorola CEO Sanjay Jha discussed the protection of the Android ecosystem with Google senior vice president Nikesh Arora, and during that talk Jha told Arora that "it could be problematic for Motorola Mobility to continue to exist as a stand-alone entity if it sold a large portion of its patent portfolio".

In connection with these discussions, the two companies signed a confidentiality and non-disclosure agreement that allowed Google to do due diligence on the company's patent portfolio."