Aligns the Q A Z keys on the a11y keyboard.

ui/keyboard/resources/layouts/system-qwerty.html

Index: ui/keyboard/resources/layouts/system-qwerty.html
diff --git a/ui/keyboard/resources/layouts/system-qwerty.html b/ui/keyboard/resources/layouts/system-qwerty.html
index 3e016e8c9706f45921dcf73363a5f57770d8a741..6c0f25f65e106d0dae1e840dca4f172e9327908d 100644
--- a/ui/keyboard/resources/layouts/system-qwerty.html
+++ b/ui/keyboard/resources/layouts/system-qwerty.html
@@ -8,7 +8,7 @@
 <link id="function-key-row" rel="import" href="function-key-row.html">
 
 <template>
-  <kb-keyset id="system-qwerty-upper" align="stretch">
+  <kb-keyset align="stretch" id="system-qwerty-upper">
     <kb-row>
       <kb-key-import importId="function-key-row"></kb-key-import>
     </kb-row>
@@ -16,30 +16,30 @@
       <kb-key-sequence invert=true keys="'1234567890-="
           hintTexts="~!@#$%^&*()_+"> </kb-key-sequence>
       <kb-key class="dark" char="&#x0008;" repeat align="right"
-          weight="160">backspace</kb-key>
+          weight="190">backspace</kb-key>

[bshe, 2014/01/31 16:09:49]

So the total weight of each row doesn't need to be the same? I assume it is
because of the align property. 

     </kb-row>
-    <kb-row>
+    <kb-row align="left">
       <kb-key class="dark" char="&#x0009;" align="left"
-          weight="160">tab</kb-key>
+          weight="155">tab</kb-key>
       <kb-key-sequence keys="QWERTYUIOP"></kb-key-sequence>
       <kb-key-sequence invert=true keys="[]\"
           hintTexts="{}|"></kb-key-sequence>
     </kb-row>
-    <kb-row>
-      <kb-key class="search dark" char="Search" image='search' weight="150">
-      </kb-key>
+    <kb-row align="stretchright">
+      <kb-key class="search dark" char="Search" image='search'
+          imageSize="35%" weight="210"> </kb-key>
       <kb-key-sequence keys="ASDFGHJKL"></kb-key-sequence>
       <kb-key-sequence invert=true keys=";&apos;" hintTexts=':"'>
       </kb-key-sequence>
       <kb-key class="dark" char="&#x000A;" align="right"
-          weight="210">enter</kb-key>
+          weight="170">enter</kb-key>
     </kb-row>
-    <kb-row>
-      <kb-shift-key weight="230" align="left">shift</kb-shift-key>
+    <kb-row align="stretchright">
+      <kb-shift-key weight="265" align="left">shift</kb-shift-key>
       <kb-key-sequence keys="ZXCVBNM"></kb-key-sequence>
       <kb-key-sequence invert=true keys=",./" hintTexts="<>?">
       </kb-key-sequence>
-      <kb-shift-key weight="230" align="right">shift</kb-shift-key>
+      <kb-shift-key weight="135" align="right">shift</kb-shift-key>
     </kb-row>
     <kb-row>
       <kb-modifier-key class="dark" weight="150" char="Ctrl"
@@ -68,28 +68,28 @@
     <kb-row>
       <kb-key-sequence keys="'1234567890-=" hintTexts="~!@#$%^&*()_+">
       </kb-key-sequence>
-      <kb-key class="dark" weight="160" char="&#x0008;"
+      <kb-key class="dark" weight="190" char="&#x0008;"
           repeat align="right">backspace</kb-key>
     </kb-row>
-    <kb-row>
+    <kb-row align="left">
       <kb-key class="dark" char="&#x0009;" align="left"
-          weight="160">tab</kb-key>
+          weight="155">tab</kb-key>
       <kb-key-sequence keys="qwertyuiop"></kb-key-sequence>
       <kb-key-sequence keys="[]\" hintTexts="{}|"></kb-key-sequence>
     </kb-row>
-    <kb-row>
-      <kb-key class="search dark" char="Search" image='search' weight="150">
-      </kb-key>
+    <kb-row align="stretchright">
+      <kb-key class="search dark" char="Search" image='search'
+          imageSize="35%" weight="210"></kb-key>
       <kb-key-sequence keys="asdfghjkl"></kb-key-sequence>
       <kb-key-sequence keys=";&apos;" hintTexts=':"'></kb-key-sequence>
       <kb-key class="dark" char="&#x000A;" align="right"
-          weight="210">enter</kb-key>
+          weight="170">enter</kb-key>
     </kb-row>
-    <kb-row>
-      <kb-shift-key weight="230" align="left">shift</kb-shift-key>
+    <kb-row align="stretchright">
+      <kb-shift-key weight="265" align="left">shift</kb-shift-key>
       <kb-key-sequence keys="zxcvbnm"></kb-key-sequence>
       <kb-key-sequence keys=",./" hintTexts="<>?"></kb-key-sequence>
-      <kb-shift-key weight="230" align="right">shift</kb-shift-key>
+      <kb-shift-key weight="135" align="right">shift</kb-shift-key>
     </kb-row>
     <kb-row>
       <kb-modifier-key class="symbol dark" weight="150" char="Ctrl"