Actually checked on the official sheet music, chords are perfect according to this

Coldplay
Rush of blood to the head.


   Am		                   C
(He) said I'm gonna buy this place and burn it down
Em			 Am
I'm gonna put it six feet underground
C			 Em
He said I'm gonna buy this place and watch it fall
Am		                Am
Stand here beside me baby in the crumbling walls

     Am			 C
Ow, I'm gonna buy this place and start a fire
Em		                Am
Stand here until I fill all your hearts desires
Am		                Em
Because I'm gonna buy this place and see it burn
Am                 	                Am
And do back the things it did to you in return


VERSE 3

Drums enter
    Am                             C
said I'm gonna buy a gun and start a war
Em                                         Am
If you can tell me something worth fighting for
Am                                        C
Ow, and I'm gonna buy this place is what I say
Em                                      Am
Blame it upon a rush of blood to the head

CHORUS

F
Honey 
	                    D
All the movements you're starting to make
                              F
See me crumble and fall on my face
                         D
and I know that mistakes that I make
F		  F
See it all disappear without a trace
F		  D
And they call as they becon you on
               F			
They says start as you mean to go on

Am         C     Em        Am
start as you mean to go on

cw :)